What kind of surface treatment is the black stainless steel screws?

the most common black stainless steel screws want to make black, plating black zinc is ok. stainless steel screw plating black zinc price is cheap, but because the surface adhesion of stainless steel is not very strong, electroplating black zinc stainless steel screw color is easy to fall off. And because the salt spray test of stainless steel itself is much stronger than that of black zinc, the black stainless steel screw after electroplating black zinc has weakened the antirust ability instead.

Shi Shi Tong recommends black stainless steel screws for black electrophoresis, vacuum electroplating, high-temperature blackening, Dacron black and so on. Although the price is more expensive than black zinc, they are far more cost-effective than stainless steel screw black zinc. Customers can choose different treatment methods according to different needs, specific price differences can ask the world (remember to tell the customer size, quantity, surface treatment requirements oh)

Black stainless steel screws, corrosion-resistant, salt-resistant fog.

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