Red Hound Auto Tailgate Cap Screw Set - Includes 4 Screws and 4 Nut Inserts; Designed for a perfect fit; Compatible with Chevrolet Silverado 1500 (2007-2013), Silverado 2500/3500 (2007-2014); Compatible with GMC Sierra 1500 (2007-2013), Sierra 2500/3500 (2007-2014); Excludes 2007 Classic, Excludes 2014 Silverado/Sierra 1500; Note: Will NOT fit 2007 Classic Models; Will NOT fit 2014 Silverado/Sierra 1500; Genuine Red Hound Auto product, designed for a direct, perfect fit (Reference: 15151978 1515-1978 11518684 1151-8684) NOTE: Rivet Nut Tool required for proper installation of Nut Inserts