Adapter StudsDesigned for installing Silver Bullets or other inchhidden wire inch marker lights/turn signalsStuds are hollow and threaded 3/8 inch-16 on one end and 5/16 inch-24 on the other endThis allows the installation of lights with a 3/8 inch mounting hole in a 5/16 inch holeGreat for fender strut mount applicationsColor/Finish: Chrome Material: Steel Product Name: Mounting Bolt Units: Pair