This auction is for six (6) NORS Auveco fasteners. They are quarter panel extension; rear tail light surround panel nuts for 1968-1974 Dodge & Plymouth (see compatibility). These nuts hold the extension panels to the quarter panels. These nuts are 1/4-20 and have 3/4" diameter flange. They do not have sealer. 

Please check your application to make sure the 3/4" diameter flange will fit your vehicle.