What inspection should stainless steel phillips screws pass ?

Stainless steel phillips screws need to pass QC inspection before leaving the factory, because stainless steel corss recessed screws are not easy to rust, durable, available environmental protection equipment, medical equipment, communication equipment, often used in some mechanical and electrical equipment, steel structure, buildings and other places, the quality requirements of stainless steel corss recessed screws are relatively high. So what tests do stainless steel corss recessed screws need to go through before they leave the factory? Today, the world will come to give you a detailed introduction.

1.Appearance quality requirements

stainless steel phillips screws requires clean deoiling, bright appearance, no burr and no deviation of slot type.

2.Inspection of stainless steel phillips screwsmaterial

Using magnets to detect, if the screw is weakly magnetic, it is made of stainless steel. Or stainless steel material testing solution can be used for testing.

3.Inspection of dimensions of stainless steel corss recessedscrews

The dosage has micrometers, Vernier calipers, plug gauges, etc.

4.Inspection of corrosion resistance of stainless steel phillips screws coating

The corrosion resistance of the coating is tested by atmospheric explosion test, neutral salt spray test (NSS test), acetate spray test (ASS test), copper accelerated acetate spray test (CASS test), corrosion paste corrosion test (CORR test) and solution drop corrosion test, immersion test, interimmersion corrosion test and so on.

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