You are buying ten (10) NOS Auveco fasteners. They are general purpose (universal) moulding clips with mastic sealer (10) and nuts with mastic sealer (10) that can be used on various years and models of Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac & GMC cars & trucks. These clips are for 7/8" to 1-1/8" wide mouldings. The top plate is 1.440" long x 1/2" wide with a 10-24 threaded stud that is 1/2" long. The clips are NOS Auveco and the nuts are NEW stock. The mastic sealer on the clip is NEW stock and is 1/8" thick X 1/2" diameter. The mastic sealed nut has a 5/8" flange diameter. Now you can seal both the inside and outside of your body panel. 

Please note that these clips may not be for all the vehicles in the compatibility listing as we do not have all the body codes. Please compare your application to the sizes and the photos that we have provided.