You are buying twelve (12) NEW fasteners. They are moulding clips with nuts sealer that are used various models & years of Buick, Cadillac, Chevrolet, Oldsmobile & Pontiac vehicles that have a 1/2" to 5/8" wide moulding and will take a bolt in clip. These clips have .800" long x 5/16" wide plate and a 11/16" long 10-24 threaded stud. They are grey in color. The nuts have a 1/2" diameter flange. Please note that these clips are NOT for any specific mouldings and may not be for some of the compatibility applications listed as we do not have all the body codes. Please check your application before buying as these are universal (general purpose) clips. Contact us if you have any questions.