The Dorman M22 x 1.5 Carbon Steel Clockwise Round Fine Wheel Lug Stud is the perfect choice for your automotive needs. This stud is made from carbon steel materials that meet SAE automotive industry standards for durability. It has undergone salt spray testing for 72-hours to simulate three years of corrosion resistance. It has also undergone industry-standard proof-load testing to ensure strength and has a black oxide finish for corrosion resistance. With its 33.12 mm head diameter, 22.56 mm shoulder diameter, this stud is sure to provide you with the strength and reliability you need. FleetPride is your First Click in Heavy Duty®.