Extra long, high strength wheel studs allow the use of wheel spacers when needed to fit larger brakes or increase vehicle track width. Quick thread type end to help prevent cross threading a lug nut. Can be installed in all GM hubs designed for 12mm wheel studs. Use with open-end lug nuts. 12mm x 1.5x 68mm wheel studs .500" diameter spline. These are 28 mm longer than the stock Corvette studs.