Motorcycle Seat Bolt Screw Nut Cap For Harley Davidson Sportster Fatboy Road King Fitment: 1/4 - 20 Thread with 1/2 of full thread, eg: Harley Sportster 1996-2016: Superlow,Iron 883,Forty Eight,1200 Custom DYNA:Street Bob, Fat Bob ,Low Rider,Wide Glide Softail: Softail Slim, Fat Boy ,Heritage,Softail Deluxe ,Breakout Touring:Road King,Street Glide,Road Glide,Electra Glide,Ultra Limited ,Ultra Limited ,CVO Solid billet aluminum with stainless steel theads Neoprene boned stainless steel washer is designed to protect your chrome and lock the bolt securley Stage 3 military grade hard black anodized Updated! *1/4" Longer than stock to provide a more secure lock*