This Jendyk Hub Centric Wheel Nut for Single Wheel fills the gap between stud and rim that is created when using standard wheel nuts. This nut centers wheels as required and stops wheel shaking/vibration and clocking, allowing for longer life of equipment and less driver fatigue. With one of the highest thread count percentages in the industry, this nut prevents loosening of wheels, provides consistent clamping force, and maintains torque longer than standard wheel nuts. Made of American steel certified and tested here in the U.S.A. to precise aerospace tolerances. Requires a 33mm hex socket to remove or install.