10 Serrated Wheel Lug Studs. 9/16-18 Serrated Wheel Stud - .625 In. Knurl, 4-1/32 In. Length. without Quick-Start Nose. Right Hand Thread. When it comes to your wheels, don't take chances. Dorman's Wheel Studs are produced to strict engineering quality standards. Our engineers design these parts with tight tolerance on specific part characteristics to ensure proper fit and function, this design provides assurance your wheels will be tight every time they are removed and installed.