The Dorman M22 x 1.5 Carbon Steel Round Non-Serrated Wheel Lug Stud is designed to meet the highest standards of automotive industry durability and corrosion resistance. This wheel lug stud is made from carbon steel and has undergone industry-standard proof-load testing to ensure strength and durability. It has also been salt spray tested for 72-hours to simulate three years of corrosion resistance. The black finish provides additional corrosion resistance. With its 22" thread diameter, this wheel lug stud is sure to provide a secure fit. FleetPride is your First Click in Heavy Duty®.