This fastener is used to hold the bedliner onto the tailgate of a 97 Chevy. There are 3/8 inch plastic strips glued to the tailgate and these fasteners attache the bedliner to the strips. The shaft is about 3/8 long and 3/16 in diameter. I have asked at several parts and hardware stores. If someone could even name this, I think I could find it. Thanks in advance.