Not to get side tracked but
I 've been working on a side project and want some opinions. I can't come up with a good way to redo a bolt. I tried wire wheel & paint, not to good. I tried sand blasting, etch priming and then paint; looks great until installation (paint chips off). Now I'm looking into parkerizing. It's pretty easy from what i've read, blast off all paint and rust. Then submerge the bolt into 195 degree parkerizing solution for about 5 min. Drop into an oil bath then wipe down after its cool.
I've read that OEM used this procedure for many years.
So i bought a cabinet from harbor frieght and off I go.