Anybody know what that yellow stuff is on the wheel well trim screws and if it's available? I know I can just get new ones but I want to keep all the original parts on this car that I can.
if your drilling new holes, or not, apply a daub paint in each hole before the screw. It will serve the same purpose.
The factory ones were drilled out after paint and that sealer helped prevent rust forming from the now drilled unprotected metal.