Is it important to passivate stainless steel phillips screws?

stainless steel phillips screws in the production process, such as the head of the process, or the car processing process, the surface of the screw may be stained with the processing of iron filings or some relatively written particles, if these are not removed, it will affect the appearance of the screw surface or will cause the screw rust. Usually, this is done by passivating the surface to remove the debris from the surface.

If stainless steel phillips screws are passivated, not only can the surface of the screw become smoother, the surface will be brighter, but also can enhance the anti-rust and anti-corrosion ability of the screw. Because of different passivation treatments, the testing time of salt spray is different, some can be over 24 hours, some can be over 1000 hours, this is to require the customer to express how long he needs to take the salt spray test, otherwise, the screw manufacturer will basically handle this screw according to the standard passivation treatment.

If stainless steel phillips screws are treated according to standard passivation, they can only be tested after 12 hours of salt spray. So when doing passivation treatment, it is necessary to inform the screw manufacturer of their own requirements, otherwise it will be different from their actual needs of the effect.