galvanized self tapping screws, what are the plating colors?

There are many types of galvanized self tapping screws that can be plated in a variety of colors. Of course, the surface treatment between different materials is also different. Please look down:

Electroplating, the most common surface treatment of carbon steel is electroplating. The color of galvanized self tapping screws can be black zinc plating, blue zinc plating, white zinc plating, copper plating, nickel plating, chrome plating, copper nickel alloy and so on. Among them, electroplated black zinc can be tested by salt spray for 24 hours. The quality of the plating can be measured by its ability to withstand corrosion. It can also be judged by the appearance, whether the surface is partially uncoated, charred, and rough.

The surface treatment between different materials is somewhat different. For example, aluminum is generally treated with an oxidized surface, titanium is generally anodized, and the like.

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