& nbsp; description. Mounting the rear seat, is not suitable for simple or side seats Easy to grasp and quick clearance, no tool required for installation. The plate if has plastic caps instead of nuts to insert, remove the caps and use the nut kit for a simple or rear seat installation. Compatible with: 1996-2017 Harley Sportster, Fatbob, Streetbob, Road Glide, Ultra Glide, Touring and other models with 1/4-20 thread. Material. Metal diameter: 17 mm/0.67 in. Height: 12 mm/0.47 in Color: black + silver Packaging content: 6 -room seat nut. Warning. Colors may vary slightly due to the colors of each monitor. Please take into account light measurement deviations due to manual measurement.