The Dorman Round Serrated Stud Carbon Steel Wheel Lug Stud is the perfect choice for your wheel lug needs. Made from carbon steel, this stud meets SAE automotive industry standards for durability and is salt spray tested for 72-hours to simulate three years of corrosion resistance. It also undergoes industry-standard proof-load testing to ensure strength and is finished with a black oxide coating for added corrosion resistance. With a head diameter of 1.5", this stud is sure to fit your wheel lug needs. FleetPride is your First Click in Heavy Duty®.