You are buying 2 bolt on center caps used specifically on some 1976 to 1987 GMC pickup and van models with 15" styled steel wheels.  You must have your own screws to bolt these on. Any questions ask first. Any questions just ask. Your purchase is a legally binding contract so please read the entire description before purchasing. I will be happy to answer any questions you have but I will not accept any cancellations under any conditions.