Can you use self-tapping screws in stainless steel?

2025-04-23

Stainless steel is widely used in construction, automotive, and appliance industries due to its excellent corrosion resistance and high strength. However, many people will have questions when using Self-Tapping Screws (Self-Tapping Screws): can Self-Tapping Screws be used on stainless steel? The answer is yes, but it needs to be analyzed according to the thickness of the material.

 

Self-tapping screws are a kind of self-cutting ability of fasteners, its thread design makes it possible to self-tapping in the material to match the internal threads, without the need for pre-tapping.


Stainless steel self tapping screws


Usually, thin stainless steel plate (thickness ≤ 2mm) or soft stainless steel (such as 304, 430 and other austenitic or ferritic stainless steel) does not need to be pre-drilled, but if you encounter thick stainless steel plate and high hardness stainless steel plate with a thickness of > 3mm, first drilled a pilot hole in the stainless steel that is slightly smaller than the diameter of the screw, to reduce the resistance to installation, reduce the risk of fracture, and to ensure the accuracy of the thread.

 

Jinxin self-tapping screws are often zinc-plated, nickel-plated or passivated surface treatment, with excellent corrosion resistance, suitable for outdoor or wet environment. Drilling, tapping, fixing and locking can be accomplished in one go with special power tools.


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