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QPQ'd alloy steel screws are rusting? I would find another company to do the salt bath nitriding. The screws should not rust if the QPQ process was done properly.
Arne Boberg said:
That rust will clean up - it oozes through the black plating. However, I am going to offer SS screws very soon. They will look kind of funny as shiny SS, but it is better than having them look rusty. If I blacken the SS screws, they will look rusty just like the alloy steel screws we are using now. If anyone knows of a better black coating for both SS and alloy steel (we're using QPQ now) please let me know.
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