The use of galvanized screws is mainly for beauty and easy installation, followed by rust prevention, will it is really not rust after galvanized? This depends on the surface treatment of galvanized screws and the use of the scene:

After the screw is galvanized, it is not that it will not rust, but it will extend the time of rust. First, the galvanized layer will slowly corrosion and rust, the thickness of the galvanized layer determines the rust prevention time of the screw, if it is thick enough, there is no problem with the use of more than ten years. If the zinc layer is exposed after corrosion, it will accelerate the corrosion and rust of the zinc layer, but it can also protect the iron. If the zinc layer corrodes the area, the iron will start to rust.
Therefore, when the screw is used, the surface should be very demanding. Only the surface treatment that meets the environmental requirements will make the rust prevention performance of galvanized screws reach the best state. Its anti-corrosion performance is only for indoor fixed environment, the use of good environment, is not very easy to rust, it can be said that it will not rust, with a certain anti-rust performance, if the galvanized screw is used in the seaside environment, the use of the environment is relatively poor, it is very easy to rust. Therefore, this should be customized according to the use of the screw environment, as well as the salt spray test time requirements, the longer the salt spray time, the better the rust prevention ability.
Suzhou Anzhikou Hardware Technology Co., Ltd. has more than 20 years of fastener production experience, can be customized according to customer needs to draw samples, to provide you with suitable fastener solutions!