7 16 self drilling screw

The functionality of metal expansion nuts centers around the principle of mechanical expansion. Upon the application of torque, the screw or bolt is threaded into the nut, which, in turn, causes the nut to expand outward. This outward expansion presses the sides of the nut against the inner walls of the hole it occupies, creating a tight fit. The added friction and mechanical grip prevent the nut from loosening over time, even in dynamic conditions.


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When selecting galvanised hex head bolts, it is important to consider the specific requirements of your project, such as the size, material, and load capacity. It is also essential to ensure that the bolts are installed correctly to maximize their effectiveness and durability. By choosing high-quality galvanised hex head bolts and following proper installation procedures, you can ensure a secure and reliable connection that will last for years to come.

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