It is aftermarket part for harley. Mounting Rear Seat to Top Fender , Not Work with Solo Seats or Side Mount Seats. Knurled Cut for Easy install & Quick Release, No Tool Required to Install & Remove. Rubber washer and seat tab cover are designed to protect your chrome and lock the bolt securley. New Finish/Color: Black knurled bolt, silver nut Easy to install, Instructions not included. Fitment: For all models rear fender seat mounting 1996-2019. For Sportster: Sportster1200, Sportster 883,Superlow, Iron 883, Forty Eight,1200 Custom, Superlow-1200T, Roadster, Seventy Two. For Touring: Road King, Road Glide, Road Glide Ultra, Street Glide, Street Glide special, Electra Glide, Ultra Limited, Ultra Limited Low, Super Glide. For Softail: Softail Springer, Softail Slim, Fat Boy Fat Boys, Heritage Softail Classic, Softail Deluxe, Breakout. For Dyna: Street Bob, Low rider, Low, Riders, Fat Bob, Wide Glide. For CVO: Cvo Pro Street Breakout, Cvo Softail Deluxe, Cvo Road Glide, Cvo Limited, Cvo Street Glide. It Is Also Compatible For License Plate Holder With 6mm Mounting Holes Fixing And Decoration. Colour:black Material:aluminum Package Contents: 1 x seat bolt set Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.