Can stainless steel flat head screws pass 1000 hours of salt spray?

For stainless steel flat head screws, their corrosion resistance is better, so more people will like to use this material. Everyone has different requirements for corrosion resistance. Some people require no red rust in salt spray after 24 hours, but some people require no red rust in salt spray after 1000 hours. Can this stainless steel screw do it?

After 1000 hours of salt spray, there is no red rust, this stainless steel flat head screws can be done. Through the passivation surface treatment, a protective film is formed on the surface of the screw, which can make the salt spray surface of the screw without red rust after 1000 hours.

But it’s not that you told the screw manufacturer that the stainless steel flat head screws should be passivated, it can pass 1000 hours of salt spray. There are many kinds of passivation, and different passivation treatments can pass the salt spray test for different time. Therefore, when communicating in the early stage, you must communicate clearly how many hours of salt spray test you have to pass, otherwise the screw manufacturer may follow the basic passivation treatment to make the surface, and then the effect will not be what you want. of.