Engaged in the fastener industry for more than 20 years, there are often customers to ask, stainless steel screws in addition to natural color and other colors?  Yes, stainless steel screw manufacturers tell you that stainless steel screws are not only natural color, but also black, sandblasting, chrome plating and dacro, etc.  

Then stainless steel passivation treatment, black treatment commonly used have the following:  

1. The surface is plated environmental black zinc: it is characterized by a relatively black and bright surface, and the unit price of the ring is relatively moderate. The deficiency is that it may appear white if it needs more than 50 hours of salt spray test.  

2. Surge treatment is the electroplating VIP in the treatment method of stainless steel screw manufacturers. The surface not only has bright and pleasant color, but the unit price is ALSO VIP price.  

Black dacromet is stainless steel screw processing invisible simple rich second generation, the unit price is relatively moderate, mainly salt spray resistance time is long, so we generally recommend for both salt spray test, but also more care about the surface of the aesthetic treatment of the customer, the use of this treatment to prevent loose, after processing its surface comparability is quite high.  

With the rapid development of fastener industry, today's customer needs have been diversified, has not only need natural stainless steel screws, our stainless steel screw manufacturers can be customized according to customer needs, to provide a series of design solutions you want.