Wheel Studs, Press-In, 0.509 in. Knurl, 1997-2004 Corvette C5 1/2 in. Stud Conversion, Long Style, 2.675 in. Underhead Length, Set of 5. Please Click on the "Read More" link for additional details about this item. Thank you, Summit Racing Equipment. The World's Speed Shop Since 1968.