These wheel lug studs are made of carbon steel and tested to demanding automotive industry standards to ensure strength, longevity and safety.

9/16-18 Serrated Wheel Stud - 0.620 in. Knurl, 2-5/8 in. Length 610-278.1 Features:

• Fits 1981-1996 Ford F-250; 1997 Ford F-250 HD; 1980-1997 Ford F-350; 1994 Ford F350
• Durable material — carbon steel meets SAE automotive industry standards for strength and hardness
• Corrosion resistant — extensive salt spray testing helps ensure years of durability against rust
• Tensile tested — lug studs undergo industry-standard proof-load testing to ensure strength
• Trustworthy quality — backed by team of professional engineers and quality control specialists in the United States