Kestas
Staff member
The hydrogen problem can be eliminated by baking the part at 350° for 4 hours.The classic advice of using a wire wheel or wire brush is simpler and better.
Electrolysis cleans the surface to bright metal, but leaves embedded hydrogen. That's bad on a stressed stud -- you don't to risk crack formation
But how many people would have the presence of mind to do this and understand the how and why? So yeah, it's better and simpler to use a wire wheel.