The Dorman 3/4" Carbon Steel Coarse Clockwise Standard Wheel Lug Nut is designed to meet SAE automotive industry standards for durability and strength. It is salt spray tested for 72-hours to simulate three years of corrosion resistance and undergoes industry-standard proof-load testing to ensure strength. The carbon steel construction is further protected by a silver zinc plating for additional corrosion resistance. This lug nut is the perfect choice for reliable performance. FleetPride is your First Click in Heavy Duty®.