{"id":4613,"date":"2024-08-15T14:54:46","date_gmt":"2024-08-15T12:54:46","guid":{"rendered":"https:\/\/www.traxx-group.com\/en\/?p=4613"},"modified":"2024-08-05T15:34:59","modified_gmt":"2024-08-05T13:34:59","slug":"bolt-loosening","status":"publish","type":"post","link":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/","title":{"rendered":"How to keep bolts from loosening\u00a0?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"4613\" class=\"elementor elementor-4613\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-847880a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"847880a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4f76a09\" data-id=\"4f76a09\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9c9cb41 elementor-widget elementor-widget-image\" data-id=\"9c9cb41\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"398\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/07\/torque-wrench-bolt-tightening-method.jpg\" class=\"attachment-large size-large wp-image-4580\" alt=\"torque wrench\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/07\/torque-wrench-bolt-tightening-method.jpg 600w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/07\/torque-wrench-bolt-tightening-method-300x199.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-53bd7c5e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"53bd7c5e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-22aa47eb\" data-id=\"22aa47eb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5713a140 elementor-widget elementor-widget-heading\" data-id=\"5713a140\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Ways to prevent loosening of bolts<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-75871157 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"75871157\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bd48c1f\" data-id=\"bd48c1f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1496f198 elementor-widget elementor-widget-text-editor\" data-id=\"1496f198\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">A threaded assembly is a mechanical process that joins multiple parts using threaded components such as screws, threaded rods, or studs. There are different variations of threaded assemblies, including screw assemblies, bolted assemblies, and stud assemblies.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">In screw assemblies, the threading of the screw enters the tapped hole of a piece, ensuring the connection between the elements.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Bolted assemblies involve the screw passing through holes in the pieces to be assembled, with its threading engaging the tapped hole of a nut.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">In stud assemblies, a stud is threaded into the tapped hole of a piece, and a nut is used to assemble the pieces.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The primary function of the screw in these assemblies is to hold the parts together by applying pressure, known as preload. This preload is achieved by creating tension in the screw during its elongation during assembly.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The most commonly used method to generate this tension in the screw is rotation. The helix of the thread induces axial movement, commonly referred to as screwing. When the head of the screw or the nut comes into contact with the stack of parts to be assembled, the screwing effort causes the elongation of the screw and, to a lesser extent, the compression of the contact surfaces.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The screw, acting like a spring, develops an internal tension that creates the assembly force.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The energy provided by the tool during torque tightening generates several effects:<\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Friction under the screw head or nut (50% of the torque tightening force is lost in friction under the screw head or nut)<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Friction in the threads (40% of the torque tightening force is lost in thread friction)<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Elongation of the screw, creating tension in the assembly (only 10% of the tightening force is translated into assembly preload)<\/span><\/span><\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-151c8ee7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"151c8ee7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4703e7f1\" data-id=\"4703e7f1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4b516c7d elementor-widget elementor-widget-heading\" data-id=\"4b516c7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Frictions account for 90% of the energy involved in screw tightening<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-239a4c78 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"239a4c78\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-328a7fd8\" data-id=\"328a7fd8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7a6bb6d5 elementor-widget elementor-widget-text-editor\" data-id=\"7a6bb6d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Various studies demonstrate that frictions constitute approximately 90% of the energy involved in torque tightening, highlighting the crucial importance of controlling and reducing frictions to enhance the efficiency of threaded assemblies. Experience shows that optimal friction management remains a complex and highly theoretical task, and even by optimizing the torque, achieving satisfactory preload in the assembly remains challenging.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Faced with these challenges, an alternative approach emerges, focusing on the use of a tensioning method. This is where the innovative solution proposed by the TRAXX company comes into play. This method aims to overcome the limitations associated with frictions by favoring an approach based on the ultrasonic bolt load measurement and control of assembly tension.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><span style=\"color: #374151;\">With its high-standard ultrasonic bolt tension meter devices, TRAXX presents an innovative approach centered on ultrasonic bolt load measurement. This approach enables the circumvention of constraints related to friction, providing the opportunity to attain a reliable and precise preload<\/span> This strategy opens up interesting prospects for significantly improving the efficiency of screws and optimizing the performance of mechanical assemblies in various industrial contexts.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-22d01767 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"22d01767\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-67817485\" data-id=\"67817485\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1fd8ce36 elementor-widget elementor-widget-heading\" data-id=\"1fd8ce36\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The primary causes of bolt loosening<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-38e2f42d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38e2f42d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-77ed2d36\" data-id=\"77ed2d36\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-63bcb15e elementor-widget elementor-widget-text-editor\" data-id=\"63bcb15e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><ol><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Vibrations:<\/strong><\/span><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Fasteners exposed to vibrations can gradually loosen due to small relative movements and load variations. This creates short-term frictionless conditions, leading to the unscrewing of the nut or bolt.<\/span><\/span><\/p><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Thermal cycling:<\/strong><\/span><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The expansion and contraction of metals in response to temperature changes can cause the loosening of a bolted assembly. Preload variations due to bolt length changes can result in joint relaxation. In some cases, heating a frozen fastener can be used for loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Over tightening:<\/strong><\/span><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> It is crucial to adhere to specifications during installation, as over-tightening of nuts and bolts can damage threads, negatively impacting the performance of the fastening. Excessive tightening pushes the bolt into the plastic deformation range, rendering it ineffective in providing preload.<\/span><\/span><\/p><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Under tightening:<\/strong><\/span><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> A bolt must be tightened adequately to be effective. The applied preload acts as a clamping force. Under-tightening can lead to rotation and loosening of the fastener due to insufficient clamping force. In tension applications, insufficiently tightened bolts can cause slippage of the attached surfaces, creating shear stress on the bolt and risking its fracture.<\/span><\/span><\/p><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Damaged components:<\/strong><\/span><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The performance of a fastener can be compromised if it is damaged, either during installation, reuse of old fasteners, or due to a manufacturing defect. Any damage can affect the tightening, leading to unwanted loosening or excessive tightening.<\/span><\/span><\/p><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Poor installation conditions:<\/strong><\/span><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The presence of dirt, grease, or lubricants can affect a fastener&rsquo;s ability to maintain preload in a joint. Lubrication can result in excessive tightening, elongation, or failure of the fastener. It also reduces the required torque for a given load, increasing the risk of failure.<\/span><\/span><\/p><\/li><\/ol><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">There are three types of stresses to which screws are subjected:<\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Static stresses:<\/strong><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Easily predictable during studies, they have a limited impact on the durability of screw assemblies.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Dynamic stresses:<\/strong><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Predictable with in-depth studies, they pose risks of loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Vibratory stresses:<\/strong><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Difficult to predict, they entail significant risks of loosening.<\/span><\/span><\/p><\/li><\/ul><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Understanding and addressing these factors is crucial for ensuring the reliability and longevity of bolted assemblies.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5b0a4314 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5b0a4314\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2461aba9\" data-id=\"2461aba9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b1c9a71 elementor-widget elementor-widget-heading\" data-id=\"3b1c9a71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The junker test: A benchmark for loosening<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-127a2008 elementor-widget elementor-widget-text-editor\" data-id=\"127a2008\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The Junker test is a mechanical trial aimed at determining the point at which a <a href=\"https:\/\/smartbolts.com\/insights\/loose-bolts-causes-ways-prevent\">bolted assembly loses its preload<\/a> when subjected to a shear load induced by transverse vibrations.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Design engineers utilize the Junker test to pinpoint the moment when fastening elements, such as lock nuts, wedges, and locking washers, fail when exposed to vibrations. The data gathered from the test empowers design engineers to specify fasteners that will operate across a broad range of conditions without loosening.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Research into the causes of self-induced loosening due to vibrations in threaded fasteners spans six decades, and these causes are now well understood. Pioneering experimental research on the behavior of bolted assemblies under transverse loads, conducted by the German engineer Gerhard Junker in the late 1960s, laid the foundation for modern theories on self-induced loosening behavior.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The methodology of the Junker test and the apparatus described in his 1969 article are now known as the Junker test and have been incorporated into international fastening standards such as DIN 65151. The Junker test is the established method used to analyze the behavior of self-induced loosening in threaded fasteners, whether secured or not, under transverse loading conditions through vibration testing.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-330f112 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"330f112\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-fac99a4\" data-id=\"fac99a4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d37a333 elementor-widget elementor-widget-video\" data-id=\"d37a333\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=6SRL1ercy2g&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b29f9b2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b29f9b2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-46cf3ab4\" data-id=\"46cf3ab4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b027f89 elementor-widget elementor-widget-heading\" data-id=\"b027f89\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">An overview of how to prevent bolt loosening<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd44c92 elementor-widget elementor-widget-text-editor\" data-id=\"cd44c92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Since the widespread adoption of bolts and nuts in manufacturing processes, engineers have demonstrated great creativity, developing numerous solutions to optimize these fastening elements. Over time, a multitude of techniques has emerged, each aiming to address specific needs.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Presently, several of these technical solutions remain relevant and are widely employed in the industrial field. These solutions can be grouped into distinct families, each with specific nuances based on its mode of action. These categories encompass various approaches aimed at enhancing the efficiency, reliability, and versatility of bolts and nuts while preventing loosening.<\/span><\/span><\/p><ol><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Thread Locking Compounds:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Thread locking compounds are adhesive materials applied to threaded fasteners, creating a secure bond that prevents self-loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Application:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Widely used in applications where vibrations and dynamic loads are common, such as automotive and machinery assemblies.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Nord-Lock Washers:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Nord-Lock washers feature a unique wedge-locking design that secures the bolted joint under dynamic conditions, preventing spontaneous loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Application:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Suitable for critical joints exposed to heavy vibrations or dynamic loads, offering increased reliability.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Pre-Applied Thread Adhesives:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Thread adhesives applied during the manufacturing process provide a reliable and consistent solution to prevent bolt loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Application:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Commonly used in the production of high-precision equipment and machinery.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Double Nut Arrangements:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Using two nuts tightened against each other creates a self-locking mechanism, enhancing resistance to loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Application:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Found in various applications where vibration resistance is crucial, such as aerospace and structural engineering.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Safety Wire Techniques:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Safety wire is threaded through specially drilled holes in the bolt and secured to prevent rotation and loosening.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Application:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Often employed in critical safety applications, such as aviation and racing.<\/span><\/span><\/p><\/li><\/ul><\/li><\/ol><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">By understanding and strategically applying these techniques, engineers can effectively mitigate the risk of bolt loosening, ensuring the longevity and reliability of bolted joints in diverse industrial settings.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c9481b2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c9481b2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6cfecfc\" data-id=\"6cfecfc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c71cbac elementor-widget elementor-widget-heading\" data-id=\"c71cbac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Increasing friction under the screw head<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5b246d elementor-widget elementor-widget-text-editor\" data-id=\"c5b246d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">To counteract the loosening phenomenon, one approach involves artificially increasing the friction under the screw head using various devices such as serrated washers, fan washers, serrated flange nuts, conical washers, or CS washers (serrated conical washers). These solutions have the advantage of being effective in static situations while remaining cost-effective. However, they come with several drawbacks, listed below:<\/span><\/span><\/p><ol><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Average Dynamic Effectiveness:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> While these devices are relatively effective under static conditions, their efficiency may decrease when subjected to dynamic loads, limiting their applicability in environments prone to movement or variable loads.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Ineffectiveness Against Vibration:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> These solutions prove ineffective against vibrations, a common factor in many industrial applications. Their inability to resist vibrational forces can compromise the stability of assemblies over time.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Failure to Preserve Preload:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Despite their ability to increase friction, these devices fail to maintain preload, the sole significant parameter ensuring the stability and strength of assemblies.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Increase in Torque Requirement:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The use of these solutions leads to an increase in the torque required for tightening, which can complicate the assembly process and require adjustments in installation procedures.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Increased Preload Dispersions:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The inherent variations in these devices can result in significant pre-load dispersions, potentially harming the consistency and reliability of assemblies.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Multiplication of Solutions\/Items:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The diversity of these devices requires complex stock management and appropriate selection based on the specific requirements of each application, leading to a proliferation of references and associated costs.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Non-Reusable:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> In many cases, these solutions are not reusable after disassembling an assembly, leading to additional costs associated with frequent replacement of these specific fasteners.<\/span><\/span><\/p><\/li><\/ul><\/li><\/ol><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Considering these drawbacks, it is crucial to account for the specific requirements of each application to choose the most appropriate solution while minimizing potential compromises.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-294337b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"294337b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1909568\" data-id=\"1909568\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-88cb299 elementor-widget elementor-widget-image\" data-id=\"88cb299\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-fan-washers-300x300.jpeg\" class=\"attachment-medium size-medium wp-image-4623\" alt=\"fan washer\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-fan-washers-300x300.jpeg 300w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-fan-washers-150x150.jpeg 150w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-fan-washers.jpeg 400w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e45482d\" data-id=\"e45482d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5fa26f9 elementor-widget elementor-widget-image\" data-id=\"5fa26f9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-washers-300x225.jpg\" class=\"attachment-medium size-medium wp-image-4624\" alt=\"washers\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-washers-300x225.jpg 300w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-washers.jpg 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b17768d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b17768d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-51ba656\" data-id=\"51ba656\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-06b7524 elementor-widget elementor-widget-heading\" data-id=\"06b7524\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Enhancing thread friction in the screw<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9a05add elementor-widget elementor-widget-text-editor\" data-id=\"9a05add\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">To counteract the loosening phenomenon, one approach involves increasing friction in the screw&rsquo;s thread using various devices such as nuts with nylon inserts, slotted nuts, pinched nuts, and deformation nuts.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">These solutions have the advantage of being effective in both static and dynamic situations, in addition to being cost-effective. However, they come with several drawbacks, outlined below:<\/span><\/span><\/p><ol><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">No solution for threaded screws (without nut):<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> These solutions are not applicable to screws directly inserted into a threaded hole without the use of a nut, limiting their scope of application.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Average vibrational efficiency:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> While they offer satisfactory efficiency in static and dynamic conditions, these solutions are only moderately effective against vibrations, which may impact their utility in environments prone to vibrational movements.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><span style=\"text-decoration: underline;\">Inconsistent performance with standard imported products (nylon inserts)<\/span><strong>:<\/strong><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> In the case of nylon inserts, performance may vary with standard imported products, introducing uncertainty regarding the quality and reliability of these devices.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Failure to preserve preload:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> Despite their ability to increase friction, these devices fail to maintain preload, a crucial parameter for ensuring the stability and strength of assemblies.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Increase in torque requirement:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The use of these solutions leads to an increase in the torque required for tightening, which can complicate the assembly process and necessitate adjustments in installation procedures.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Increased preload dispersions:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The inherent variations in these devices can result in significant pre-load dispersions, potentially harming the consistency and reliability of assemblies.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Multiplication of solutions\/items:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The diversity of these devices requires complex stock management and appropriate selection based on the specific requirements of each application, leading to a proliferation of references and associated costs.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Increase in torsion in the screw:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> The introduction of these devices can increase torsion in the screw, impacting stress distribution and potentially affecting the durability of the assembly.<\/span><\/span><\/p><\/li><\/ul><\/li><li><p><span style=\"text-decoration: underline;\"><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Partial reusability:<\/span><\/span><\/span><\/p><ul><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><em>Description:<\/em><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> In many cases, the possibility of reusing these devices after disassembling an assembly is limited, resulting in additional costs associated with the frequent replacement of these specific fasteners.<\/span><\/span><\/p><\/li><\/ul><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-40b6bc5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"40b6bc5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d372791\" data-id=\"d372791\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1fc78fb elementor-widget elementor-widget-image\" data-id=\"1fc78fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-screws-with-nylon-inserts-150x150.webp\" class=\"attachment-thumbnail size-thumbnail wp-image-4625\" alt=\"screw with nylon insert\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-screws-with-nylon-inserts-150x150.webp 150w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-with-screws-with-nylon-inserts.webp 300w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-25d03ec\" data-id=\"25d03ec\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9656acb elementor-widget elementor-widget-image\" data-id=\"9656acb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/nuts-nylon-insert-150x150.webp\" class=\"attachment-thumbnail size-thumbnail wp-image-4626\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e32f8c4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e32f8c4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d2e9128\" data-id=\"d2e9128\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1a1e4e5 elementor-widget elementor-widget-heading\" data-id=\"1a1e4e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Jam nuts<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-96b7f8b elementor-widget elementor-widget-text-editor\" data-id=\"96b7f8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The jam nut is a frequently employed solution to prevent loosening in assemblies subjected to various stresses. Its principle is based on creating internal stress resulting from the torque formed by the nut and the jam nut. This stress \u00ab\u00a0locks\u00a0\u00bb the threads of each nut against those of the screw, acting as a play-catching mechanism.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">While this method offers relatively good resistance to dynamic stresses, it has limitations when faced with intense vibrations that may eventually overcome the jam nut. Moreover, implementing this solution requires specific skill, with a high risk of adding preload after tightening the first nut, often leading to overtightening of assemblies.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Here is a list of drawbacks associated with using jam nuts:<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Moderately effective under vibrational stress: Although this method may provide some resistance to vibrations, its effectiveness is limited under intense vibrational conditions.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Inconsistent performance, heavily dependent on the procedure and the operator: The performance of this solution varies significantly depending on the operator, making repeatability challenging.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Delicate implementation with two wrenches: Executing this technique requires skillful handling of two wrenches, which can be tricky, especially in confined or challenging access environments.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Manual operation, impossible with motorized screwing tools: Tightening the jam nut and the nut is a manual operation, which can be time-consuming and makes it impossible to use motorized screwing tools, thus limiting the efficiency of the process.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Doubles the assembly time due to tightening two nuts: The necessity to tighten two nuts for each assembly significantly increases the assembly time, which can be restrictive in applications requiring high production efficiency.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">In summary, while the jam nut can provide an effective solution in certain situations, its drawbacks in terms of operational complexity, operator dependence, and increased assembly time may warrant exploring other alternatives for mechanical assemblies.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2da8e14 elementor-widget elementor-widget-image\" data-id=\"2da8e14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"432\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-jam-nuts-768x432.jpg\" class=\"attachment-medium_large size-medium_large wp-image-4627\" alt=\"jam nut\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-jam-nuts-768x432.jpg 768w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-jam-nuts-300x169.jpg 300w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-loosening-jam-nuts.jpg 777w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f035e2f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f035e2f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c4839e2\" data-id=\"c4839e2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3381b20 elementor-widget elementor-widget-heading\" data-id=\"3381b20\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Appli\u200b\u200bcation of adhesives on bolts<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5bebad5 elementor-widget elementor-widget-text-editor\" data-id=\"5bebad5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">To counter the loosening of a bolt, the idea of using adhesives (glues) emerges as a universal solution, applicable not only with screws, studs, threaded rods, and tap holes but also with nuts. While this approach may seem straightforward and widely adopted, it is important to note that the inappropriate use of adhesives can lead to more disadvantages than advantages.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The use of adhesives requires meticulous surface preparation and a thorough understanding of their condition. Indeed, the performance of adhesives varies based on many more or less predictable parameters, such as surface roughness, clearances, materials, lubrication, temperature, humidity, etc. Managing so many parameters makes it challenging to achieve reliable repeatability for the safety of an assembly.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Moreover, the curing time of adhesives can range from a few hours to several days, limiting the possibility of a quick startup of the mechanism.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">While this solution has advantages, such as static efficiency, some effectiveness in dynamic conditions, relative sealing, and economic cost, it also has several disadvantages:<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Moderately effective under vibrational stress: Adhesives have limited effectiveness against vibrations, which can affect their performance in environments prone to vibrational movements.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Inconsistent performance with too many influential parameters: Variability in performance due to the multitude of parameters can make consistent prediction of assembly integrity challenging.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Sometimes difficult disassembly: Disassembling bonded parts can be complex, leading to difficulties during maintenance or component replacement.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Does not preserve preload: Adhesives do not guarantee the maintenance of preload, a crucial characteristic.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Highly polluting: Once bonded, the screw becomes difficult to recycle, posing a significant environmental issue.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Containers are highly polluting: Adhesive containers may present considerable environmental risks in terms of pollution.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Operator risks in case of contact: The use of adhesives can pose health risks to operators in case of contact, requiring appropriate precautions.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">In conclusion, while adhesives offer advantages, their use requires careful attention to details and a rigorous evaluation of potential trade-offs.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bf7c464 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bf7c464\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1cf3f57\" data-id=\"1cf3f57\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe909ab elementor-widget elementor-widget-heading\" data-id=\"fe909ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Nord-Lock washers<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ca0ace5 elementor-widget elementor-widget-text-editor\" data-id=\"ca0ace5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The self-locking washers equipped with ramps, represent a technology that directly influences the preload to be maintained, ensuring the preservation of the elongation of the screw even in the presence of dynamic loads or intense vibrations. This technology is primarily embodied through self-locking washers with ramps.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">The effectiveness of this method relies on several key aspects. Firstly, it proves to be efficient in static, dynamic, and vibrational conditions, making it a versatile solution. It offers a variety of solutions in the market, suitable for both screws and nuts. Furthermore, this approach has a limited number of references and is reusable, contributing to a more efficient management of components. Another notable advantage is its origin in high-quality European production, ensuring increased reliability.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">However, there are a few drawbacks to consider in the application of this method:<\/span><\/span><\/p><ul><li><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Limited to two European manufacturers: The availability of this technology is limited to only two manufacturers, which may restrict options and competitiveness in the market.<\/span><\/span><\/li><li><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Component costs: The components associated with this method can be relatively expensive, impacting the overall cost of the assembly. Therefore, a careful cost evaluation compared to the benefits offered is necessary when adopting this technology.<\/span><\/span><\/li><\/ul><p>\u00a0<\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Despite these drawbacks, this method remains an interesting option due to its diverse performances and its ability to meet various assembly requirements. However, a thorough analysis of costs and available alternatives is recommended in the selection process.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5dfd5ad elementor-widget elementor-widget-image\" data-id=\"5dfd5ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/nord-lock-washers-bolt-loosening-300x300.webp\" class=\"attachment-medium size-medium wp-image-4631\" alt=\"nord-lock washers bolt loosening\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/nord-lock-washers-bolt-loosening-300x300.webp 300w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/nord-lock-washers-bolt-loosening-150x150.webp 150w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/nord-lock-washers-bolt-loosening.webp 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-dbc0aa5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dbc0aa5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e48cc53\" data-id=\"e48cc53\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c33f6e6 elementor-widget elementor-widget-heading\" data-id=\"c33f6e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">TRAXX: an alternative for controlling bolt loosening<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27a90de elementor-widget elementor-widget-text-editor\" data-id=\"27a90de\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">To address bolt loosening issues, two common practices are currently adopted in the industry:<\/span><\/span><\/p><ol><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Periodic Disassembly and Reassembly:<\/strong><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> This involves the periodic disassembly and reassembly of either the entire set of assemblies (as seen in refinery applications) or a portion of installations (constituting approximately 20% of bolted assemblies in the wind energy sector) each year. This method is labor-intensive, repetitive, and, admittedly, somewhat antiquated.<\/span><\/span><\/p><\/li><li><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"><strong>Torque Re-tightening Method:<\/strong><\/span><\/span><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\"> This method involves slightly loosening the assembly before subsequently retightening it. During the retightening process, it may impose a higher tension on the stud compared to its initial state, risking exceeding the stud&rsquo;s elastic limit and causing plastic deformation.<\/span><\/span><\/p><\/li><\/ol><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">In both cases, the use of a bolt tension meter device significantly streamlines and enhances maintenance. Why? Because with the TRAXX method, there&rsquo;s no need to disassemble the assemblies. It&rsquo;s a non-intrusive approach that allows for the measurement of tension between two components by simply placing a sensor on the assembly&rsquo;s bolts, enabling immediate detection of any loosening.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">Therefore, with TRAXX devices, it becomes possible to monitor the evolution of tightening tension over time (1 month, 5 years, 10 years). By comparing the initial tightening data with those obtained at a specific point, such as during the first maintenance cycle, it is easy to detect any loosening or anomalies in the assembly.<\/span><\/span><\/p><p><span style=\"font-family: Arial, sans-serif;\"><span style=\"font-size: medium;\">In this context, the TRAXX-M2 device becomes a <a href=\"https:\/\/www.traxx-group.com\/produits\/traxx-m2\/\">tool for controlling loosening<\/a>, tracking, and long-term monitoring of assemblies.<\/span><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d0e69a6 elementor-widget elementor-widget-image\" data-id=\"d0e69a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"407\" height=\"306\" src=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-tension-meter-bolt-loosening.png\" class=\"attachment-medium_large size-medium_large wp-image-4632\" alt=\"bolt tension meter traxx-m2\" srcset=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-tension-meter-bolt-loosening.png 407w, https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/bolt-tension-meter-bolt-loosening-300x226.png 300w\" sizes=\"(max-width: 407px) 100vw, 407px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Loosening of a bolt can result from various factors, including impacts, vibrations, and dynamic loads. A faulty design or installation in a bolted application significantly increases the risk of loosening. <\/p>\n","protected":false},"author":2,"featured_media":4863,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-4613","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bolt loosening : Understanding how to keep bolts from loosening\u00a0?<\/title>\n<meta name=\"description\" content=\"In this article, we&#039;ll see how to stop the loosening of your bolted assemblies. The loosening of a bolt can result from various factors, including vibration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bolt loosening : Understanding how to keep bolts from loosening\u00a0?\" \/>\n<meta property=\"og:description\" content=\"In this article, we&#039;ll see how to stop the loosening of your bolted assemblies. The loosening of a bolt can result from various factors, including vibration.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/\" \/>\n<meta property=\"og:site_name\" content=\"TRAXX GROUP\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-15T12:54:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/torque-wrench-bolt-tightening-method.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"398\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jacques zwickert Jacques Z\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jacques zwickert Jacques Z\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"18 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/\"},\"author\":{\"name\":\"Jacques zwickert Jacques Z\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#\\\/schema\\\/person\\\/07d1ca5b23ac4c31eef24a574b6e23d2\"},\"headline\":\"How to keep bolts from loosening\u00a0?\",\"datePublished\":\"2024-08-15T12:54:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/\"},\"wordCount\":3068,\"publisher\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/torque-wrench-bolt-tightening-method.jpg\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/\",\"url\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/\",\"name\":\"Bolt loosening : Understanding how to keep bolts from loosening\u00a0?\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/torque-wrench-bolt-tightening-method.jpg\",\"datePublished\":\"2024-08-15T12:54:46+00:00\",\"description\":\"In this article, we'll see how to stop the loosening of your bolted assemblies. The loosening of a bolt can result from various factors, including vibration.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/2024\\\/08\\\/15\\\/bolt-loosening\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/torque-wrench-bolt-tightening-method.jpg\",\"contentUrl\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/torque-wrench-bolt-tightening-method.jpg\",\"width\":600,\"height\":398,\"caption\":\"torque wrench\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/\",\"name\":\"TRAXX GROUP\",\"description\":\"Master the tension of your bolted assemblies\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#organization\",\"name\":\"TRAXX GROUP\",\"alternateName\":\"TRAXX GROUP\",\"url\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/cropped-LOGO_TEXTE_CADRE-BLANC_72ppp.jpg\",\"contentUrl\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/wp-content\\\/uploads\\\/2023\\\/08\\\/cropped-LOGO_TEXTE_CADRE-BLANC_72ppp.jpg\",\"width\":2194,\"height\":567,\"caption\":\"TRAXX GROUP\"},\"image\":{\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/#\\\/schema\\\/person\\\/07d1ca5b23ac4c31eef24a574b6e23d2\",\"name\":\"Jacques zwickert Jacques Z\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d3e40ff68937b5a7a124f9a3d9212e862ff4f64b46bb61b4b80b5ee114b6f71e?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d3e40ff68937b5a7a124f9a3d9212e862ff4f64b46bb61b4b80b5ee114b6f71e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/d3e40ff68937b5a7a124f9a3d9212e862ff4f64b46bb61b4b80b5ee114b6f71e?s=96&d=mm&r=g\",\"caption\":\"Jacques zwickert Jacques Z\"},\"url\":\"https:\\\/\\\/www.traxx-group.com\\\/en\\\/author\\\/jacques-zwickert-jacques-z\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bolt loosening : Understanding how to keep bolts from loosening\u00a0?","description":"In this article, we'll see how to stop the loosening of your bolted assemblies. The loosening of a bolt can result from various factors, including vibration.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/","og_locale":"fr_FR","og_type":"article","og_title":"Bolt loosening : Understanding how to keep bolts from loosening\u00a0?","og_description":"In this article, we'll see how to stop the loosening of your bolted assemblies. The loosening of a bolt can result from various factors, including vibration.","og_url":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/","og_site_name":"TRAXX GROUP","article_published_time":"2024-08-15T12:54:46+00:00","og_image":[{"width":600,"height":398,"url":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/torque-wrench-bolt-tightening-method.jpg","type":"image\/jpeg"}],"author":"Jacques zwickert Jacques Z","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Jacques zwickert Jacques Z","Dur\u00e9e de lecture estim\u00e9e":"18 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/#article","isPartOf":{"@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/"},"author":{"name":"Jacques zwickert Jacques Z","@id":"https:\/\/www.traxx-group.com\/en\/#\/schema\/person\/07d1ca5b23ac4c31eef24a574b6e23d2"},"headline":"How to keep bolts from loosening\u00a0?","datePublished":"2024-08-15T12:54:46+00:00","mainEntityOfPage":{"@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/"},"wordCount":3068,"publisher":{"@id":"https:\/\/www.traxx-group.com\/en\/#organization"},"image":{"@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/#primaryimage"},"thumbnailUrl":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/torque-wrench-bolt-tightening-method.jpg","articleSection":["Blog"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/","url":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/","name":"Bolt loosening : Understanding how to keep bolts from loosening\u00a0?","isPartOf":{"@id":"https:\/\/www.traxx-group.com\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/#primaryimage"},"image":{"@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/#primaryimage"},"thumbnailUrl":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/torque-wrench-bolt-tightening-method.jpg","datePublished":"2024-08-15T12:54:46+00:00","description":"In this article, we'll see how to stop the loosening of your bolted assemblies. The loosening of a bolt can result from various factors, including vibration.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.traxx-group.com\/en\/2024\/08\/15\/bolt-loosening\/#primaryimage","url":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/torque-wrench-bolt-tightening-method.jpg","contentUrl":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2024\/08\/torque-wrench-bolt-tightening-method.jpg","width":600,"height":398,"caption":"torque wrench"},{"@type":"WebSite","@id":"https:\/\/www.traxx-group.com\/en\/#website","url":"https:\/\/www.traxx-group.com\/en\/","name":"TRAXX GROUP","description":"Master the tension of your bolted assemblies","publisher":{"@id":"https:\/\/www.traxx-group.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.traxx-group.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.traxx-group.com\/en\/#organization","name":"TRAXX GROUP","alternateName":"TRAXX GROUP","url":"https:\/\/www.traxx-group.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.traxx-group.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2023\/08\/cropped-LOGO_TEXTE_CADRE-BLANC_72ppp.jpg","contentUrl":"https:\/\/www.traxx-group.com\/en\/wp-content\/uploads\/2023\/08\/cropped-LOGO_TEXTE_CADRE-BLANC_72ppp.jpg","width":2194,"height":567,"caption":"TRAXX GROUP"},"image":{"@id":"https:\/\/www.traxx-group.com\/en\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.traxx-group.com\/en\/#\/schema\/person\/07d1ca5b23ac4c31eef24a574b6e23d2","name":"Jacques zwickert Jacques Z","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/secure.gravatar.com\/avatar\/d3e40ff68937b5a7a124f9a3d9212e862ff4f64b46bb61b4b80b5ee114b6f71e?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/d3e40ff68937b5a7a124f9a3d9212e862ff4f64b46bb61b4b80b5ee114b6f71e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d3e40ff68937b5a7a124f9a3d9212e862ff4f64b46bb61b4b80b5ee114b6f71e?s=96&d=mm&r=g","caption":"Jacques zwickert Jacques Z"},"url":"https:\/\/www.traxx-group.com\/en\/author\/jacques-zwickert-jacques-z\/"}]}},"_links":{"self":[{"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/posts\/4613","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/comments?post=4613"}],"version-history":[{"count":16,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/posts\/4613\/revisions"}],"predecessor-version":[{"id":4638,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/posts\/4613\/revisions\/4638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/media\/4863"}],"wp:attachment":[{"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/media?parent=4613"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/categories?post=4613"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.traxx-group.com\/en\/wp-json\/wp\/v2\/tags?post=4613"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}