To gget back to the orig post, what I have done is very easy. I paint the bolts with very lil primer than spray them body color but keeping the build up of color very low than let them dry for a few days. When I install them I use a plastic ziplock bag and cut a square 1"x1" of plastic to use as a liner for the socket . You need a new liner for every bolt but this has worked many times for me and cost next to nothing. Dave has the best idea if you have a airbrush but if you dont try my trick.