{"id":4413,"date":"2025-06-12T10:30:52","date_gmt":"2025-06-12T01:30:52","guid":{"rendered":"https:\/\/ohtavn.com\/?post_type=media&p=4413"},"modified":"2025-06-04T17:04:06","modified_gmt":"2025-06-04T08:04:06","slug":"prevents-over-tightning-what-is-the-proper-fastening-torque-for-screws","status":"publish","type":"media","link":"https:\/\/ohtavn.com\/en\/media\/prevents-over-tightning-what-is-the-proper-fastening-torque-for-screws\/","title":{"rendered":"Prevent Over-Tightening! What Is the Proper Torque for Fastening Screws?"},"content":{"rendered":"
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Introduction<\/h3>\n<\/div>\n
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Are you thinking, “It’s just a screw”? In the world of manufacturing, how you tighten this small component can significantly affect the quality and safety of a product. One of the most important factors is “torque management”\u2014in simple terms, how much force is applied when tightening a screw.<\/p>\n<\/div>\n

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If you apply too much force, the screw or parts may break. On the other hand, if the force is too weak, the screw may loosen over time, potentially leading to unexpected problems or accidents.<\/p>\n<\/div>\n

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So, what\u2019s the right way to do it?<\/p>\n<\/div>\n

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This article will answer that question. We’ll clearly explain everything you need to know about the “proper tightening torque”\u2014from the basics to practical applications on the production floor. This is a must-read for anyone involved with screws: manufacturing engineers, quality control personnel, designers, and on-site workers alike. Let\u2019s dive in!<\/p>\n<\/div>\n

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What is tightening torque, anyway?<\/h3>\n<\/div>\n
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Let\u2019s start with the basics\u2014what “tightening torque” actually means.<\/p>\n<\/div>\n

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Torque means “rotational force”, and its purpose is “clamping force”<\/h4>\n<\/div>\n
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Tightening torque<\/strong> refers to the rotational force<\/strong> applied when tightening a screw or bolt with a wrench or similar tool. It\u2019s calculated by multiplying force (N) by the distance from the center of rotation (m), and it is expressed in units of N\u00b7m (Newton meters)<\/strong>.<\/p>\n<\/div>\n

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So why do we tighten screws? The purpose is to generate axial force<\/strong> that firmly holds the parts together. When you tighten a screw, it slightly stretches. The force trying to return it to its original length is the axial force. Think of it as an invisible, powerful spring clamping the parts together<\/strong>. Thanks to the friction from this axial force, the components stay fixed and don\u2019t slip or loosen.<\/p>\n<\/div>\n

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In other words, tightening with the right torque = getting the right axial force<\/strong>. That\u2019s the essence of screw tightening.<\/p>\n<\/div>\n

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\u201cJust right\u201d is key! The risks of over- or under-tightening<\/h4>\n<\/div>\n
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Have you ever thought, \u201cI better tighten this really well!\u201d and used too much force? That mindset can actually backfire. Both over-tightening and under-tightening can cause various problems.<\/p>\n<\/div>\n

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Over-tightening (over-torque) can cause “damage”<\/strong><\/p>\n<\/div>\n

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