You are buying ten (10) NOS Auveco fasteners. They are 1/8" yellow zinc plated steel tubular (barrel) nuts that can be used on Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac & GMC vehicles. They are for a 1/8" diameter smooth stud and fit into a .184" to .190" diameter hole. The nuts are stamped "PAL". They have a panel range of .051"-.059" These plated nuts are very rare and are great for ornaments, emblems, name plates, script, etc.. that have 1/8" diameter smooth studs.