Reasons For Stainless Steel Screw Fracture And The Hazards Of Non-standard Screw Fracture

Aug 20, 2024

Normally, stainless steel screws are not easily broken during normal use. However, in special circumstances, stainless steel screws may break. So, why do stainless steel screws break? What is the real cause of stainless steel screw breakage?

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1. The quality of raw materials used for stainless steel screws is poor, and there are many impurities and impurities in the wire, resulting in insufficient hardness of the screws.
2. Excessive force is applied when using stainless steel screws. A torque test should be conducted to determine the appropriate breaking force and adjust the torque. If higher torque requirements are needed, screws should undergo heat treatment.
3. Process issues during the production process, such as improper design of the center of gravity, excessively deep Q value, and too small R position design during down flushing operation.
4. Is the pre drilled hole appropriate? If the pre drilled hole is too small, the screw is prone to breakage.
We should be familiar with non-standard screws, which are mainly used for connection and fixation, and have a wide range of applications, playing an important role. Some people may think that non-standard screws are not very useful, but have we ever heard of the saying: "To make a useful screw, it needs to appear where it is needed".
Don't underestimate any small non-standard screw, as it could very well become the culprit of an accident.
In fact, most non-standard screw fractures are caused by looseness. Due to the similarity between loose and broken screws and fatigue fracture, it is often mistaken for a problem with fatigue strength. In fact, fatigue strength usually far exceeds our usage needs.
The problem of non-standard screw fracture is generally considered to be due to insufficient strength, so increasing the bolt diameter is often used to improve strength. This can increase the pre tightening force and friction of non-standard screws, thereby improving the anti loosening effect. However, this method is not a professional solution, with high investment and low returns.

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