RaceQuip offers various hardware pieces for auto racing seat belt and racecar harness installation. All RaceQuip seat belt mounting hardware is forged from premium quality SAE 1050 steel, then cadmium plated for corrosion resistance. This 3" bolt on end is designed to slide onto the belt along with a 3" wide 3 bar slide (700075) and then bolt to the chassis.This 3" bolt on end is the one that comes standard on most RaceQuip 3" wide seat belt sets. Sold each.