High Strength screws
In a maintenance type application, and sometimes even in an OEM design situation, a screw failure often leads people to opt for a stronger screw class or grade to prevent future failures. On the surface, this makes sense. Compared to a Grade 5 screw, a Grade 8, Socket Head Cap Screw or Grade 9 screw would increase the screw strength roughly 25-50%. However, as highlighted below, there are a few issues that must be considered when using higher strength screwing products:
The ductility of a screw decreases as the hardness and strength increases.
High strength screws are more susceptible to fatigue failures.
If electroplated, high strength screws are prone to hydrogen embrittlement issues.
A stronger screw has a lower temperature range in which the screw can be used.
Higher strength screws also cost significantly more due to the higher alloys and heat treatment they require.
It is always wise to look at the root cause of any failure before moving to a higher strength screw. In design work, it is wise to consider a larger size screw or a higher number of screws in the joint before simply moving to a higher strength product.
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M-sing Screw Factory with a mature production technology and sophisticated processing techniques, improved detection methods, with the development of strong design capabilities, product quality, the introduction of domestic and international high-precision molds and high-quality raw materials. The main production line with GB, Japan’s JIS, the United States ANSI, the German DIN, BS British standards of bolts, and customers can request all kinds of difficult design and production of standard parts. And through third-party authoritative testing agencies product testing, qualified in the relevant report. Re-header equipment, Roll Machine, tail-cutting, stamping machines, slot milling machines, line cutting, automatic lathes, and other production equipment, some of which more machinery assembling a computer-controlled, automatic detection display, can provide the steady and rapid Zero tolerance of the product, the monthly production capacity of several 10 million.
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