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Video: Bluing screws

 

I blue the screws as follows: I screw the screws to a plate for grinding. I then polish the screws to a very high finish. After cleaning, I heat the screws while still on the plate and dip everything into a blue salt process, increase the heat gently to acheive the desired blue color. Then I immediately remove everything from the solution and allow to cool. I then clean the screws and they are ready for assembly.

 

My thanks to Paul and Ruth Gerber for the following video …

 

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