I have been wondering whats best, what works long term for where ever fasteners go thru or set on the body like clips or screws. For instance the front edge hood trim on a 69 dart. It has screws and plastic clips. I know its likely to scrach or chip the paint where the screw goes thru, or even the nut may as its tightend up on the back side, or the clip itself could chip the paint. Then there are screws that actualy screw into the body like the spears on the rocker panels on the scamp. There are stainless philips screws on each end. What do you use to keep rust away?