You are buying two (2) NORS Auveco fasteners. They are 5/16-18 cage nuts that can be used on Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac and GMC vehicles. They have a panel range of .037"-.050". These nuts are extremely rare.

Please note that this nut is NOT for any specific application and may not be for some of the compatibility applications listed as we do not have all the body codes. Please compare your application to the photos and the sizes that we have provided.