
For months I've been looking for lug nuts that would fit the aluminum wheels on the OEM C3 Corvette (1977). I thought they would need additional spacers to work but was pleasantly surprised that they are so perfect. Under the washer I measured a .456" shank length and the shank diameter was .722" which worked great. So happy I found them and gave them a chance. Lots of anti-seize has been used to allow the shaft to rotate easily in the lug holes. See a comparison of their photos to OEM C3 Corvette cleats made for aluminum wheels with a small thread size.

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