First off which part of the screw is being stripped? The slotted end or the thredded end? If it is the slotted end just get a better screwdriver. Wal-mart has an excellent set...$5 I think. They are yellow w/ black rubber grips in a yellow case. They are much better than the one you get w/ the starter kit. Back on subject if its the threadded end, just don't screw them in so tight. I doubt that plastic could strip metal but you never know.

skyline looks best