1 1/8" - 16 Splineless Clipped Head - 1.224 In. Body Dia. 3.72 In. Length Bolt Grade:8 Color:Black Head Diameter:1.592 In. Knurl Diameter (In):0 In. Package Contents:40 Wheel Studs Quick-Start Nose:No SAE or Metric:SAE Shoulder Diameter:1.224 In. Shoulder Length (In):1.6 In. Shoulder Shape:Round Shoulder Thickness:0.983 In. Stud Material:Carbon Steel Style:Non-serrated Stud with Clip Head Thread Diameter:1.118 In. Thread Handling:Right Hand Thread Thread Length (In):1.75 In. Thread Size:1 1/8-16 Thread Type:Extra Fine Threads Per Inch:16 Under Head Length:3.72 In. California Proposition 65:WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov