- Description
1320 Performance Extended wheel studs . 1320 Performance extended wheels studs are manufactured using high-strength alloy steel. FITMENT: will work on most GM vehicle with the same stud spec listed below also fits some Aftermarket Honda Acura hubs with larger studs than the stock knurl studs due to aftermarket company use over sized studs. PRODUCT DESCRIPTIONS 1320 Performance extended wheels studs are manufactured using high-strength 10.9 Grade alloy steel. These extended wheel studs are designed and intended to be used with any open-ended lug nuts on racing slicks, or when wheel spacers are required. Our extended stud replacements are designed to press-fit into the original hole in the OEM hub with a hydraulic press, Aftermarket hub might have a different Knurl diameter than stock so they are not recommended. Specifications Knurl Diameter 0.509˝ UHL (under head length) 2.500˝ Knurl Length 0.315˝ Nose Length 0˝ Diameter - Pitch M12 x 1.5 Wheel Stud Hole Size - Cast Iron/Steel Hub 0.493˝ - 0.503˝ Cast Iron/Steel Hub Drill Bit Size (actual dim.) 1/2˝ (0.500˝) Wheel Stud Hole Size - Aluminum Hub 0.493˝ - 0.499˝ Aluminum Hub Drill Bit Size (actual dim.) 12.5mm* (0.492˝)