How long can the salt spray test of the flat head torx screw be reached?

For the user, once the screw is rusted, it is basically not usable. Therefore, when ordering screws, some people will require the anti-rust performance of the screws, such as salt spray test to reach 72 hours, 240 hours, 500 hours and so on. So, how long can the salt spray test of the flat head torx screw be reached?

The salt spray test of the flat head torx screw is also related to the material of the screw. When the material of the screw is made of stainless steel, the passivation treatment can reach more than 500 hours. This passivation treatment not only improves the rust resistance of the stainless steel screws but also removes the burrs on the surface of the screws. However, some people do not want such a surface color, they will want to make the surface of the screw black, yellow, red, etc. How long can the salt spray test last?

The stainless steel flat head torx screw can be vacuumed and can basically be made with the color you want. For this surface treatment, the salt spray test can generally reach 72 hours. If it is carbon steel, the galvanized salt spray test can also reach 24 hours. Therefore, how long the salt spray test can be achieved is related to the material and surface treatment of the screw.

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