These wheel lug studs are made of carbon steel and tested to demanding automotive industry standards to ensure strength, longevity and safety. Trustworthy quality - backed by team of professional engineers and quality control specialists in the United States 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 Package Dimensions: 4.81 x 3.63 x 2.19 inches Package Weight: 2.78 lb Package Quantity: 1 UPC: 019495610267 Color: Silver Head Diameter: 28.45 mm Material: Steel Package Contents: 10 Studs Quick-Start Nose: No SAE or Metric: Metric Shoulder Diameter: 15.319 MM Shoulder Length (In): 26.795 mm Splined Bore Diameter: 15.825 MM Style: Serrated Stud Thread Diameter: 14 MM Thread Direction: Clockwise (Right) Thread Length (In): 37.59 mm Thread Pitch: 1.5 mm Thread Size: M14-1.50 Under Head Length: 2.992 in Country of Origin: US