With This Material, The Stainless Button Head Cap Screws Are Locked Up?

Screw fasteners are inseparable from our lives. As long as it is a mechanical device, there are basically screw fasteners on it, and it is difficult to find the screw fastener on it. When we use screw fasteners, they are generally used together with matching nuts, gaskets, and the like. But when we used stainless steel screws, we found that the stainless button head cap screws were locked up after a while. Why is this?

There are several reasons that may cause this to happen: one is the 304HC material used for stainless button head cap screws, and the nut material used is also 304HC, which will lock up. The second is that during the tightening process, the force is uneven or inclined. The third is that when the tightening is too strong or the speed is too fast, the friction caused by the stainless steel screws becomes soft and the adhesion occurs. Fourth, when assembling, the screws that are screwed in are not perpendicular to the threaded holes.

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