The head of this rivet is very thin. I use a small flat blade screwdriver type bolt and nut. I chuck the bolt in a cordless drill and run it on a bench sander with the drill on. A poor man's lathe if you will. It is nice to have an original rivet handy to match it up while sanding.
I then prime it with epoxy primer and have it painted body color, and assemble it when the fender comes back from the painter.
