Originally Posted by faawrenchbndr
I've used nail polish on sight set screws and on 1911 grip screws.
Everywhere else gets red or blue Loctite. AR15 gas key screws get Rocksett
I've used both clear and red nail polish on screws and nuts for years, and it works! I use the clear where appearance matters, and red where routine inspection is required. Thorough cleaning of parts is key.
Another home-spun trick is hairspray for drive-belt dressing. It also keeps a Hogue HandAll grip in place nicely!