The Dorman 3/4" Round Serrated Wheel Lug Stud is designed to meet the highest industry standards for strength and durability. Made from carbon steel, it undergoes proof-load testing to ensure it can withstand the toughest conditions. It also undergoes 72-hour salt spray testing to simulate three years of corrosion resistance. The black finish provides additional protection against corrosion. With its 1.278" head diameter, 0.784" shoulder diameter, this wheel lug stud is sure to provide a secure fit. FleetPride is your First Click in Heavy Duty®.