You are buying twenty five (25) NOS Auveco fasteners. They are 8-32 PAL nuts with neoprene sealer that can be used on Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac & GMC vehicles. "PAL" is stamped on the nuts. The nuts have a 3/8" hex and a 5/8" flange diameter. They can be used on any 8-32 threaded stud.