You are buying six (6) NORS Auveco fasteners. They are general purpose (universal) moulding clips with mastic sealer & nuts with mastic sealer that can be used on various models and years of Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac and GMC. They can be used on quarter, belt, side, fender, etc. mouldings. This clip has a 8-32 x 5/8" long adjustable threaded stud so that you can off set the clip on your moulding if you wish. The top plate is .665" wide x 1.490" long. The NORS clip has a 1/8" thick x 1/2" OD mastic sealer that is NEW stock. The NEW stock mastic sealer nuts have a 11/32" hex and a 5/8" diameter flange.