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Alloy Wheel Lug Nuts?

karls59tr

Obi Wan
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I just bought a set of old school Shelby Alloy Racing wheels...the Slot type that are similar to Ansen American Racing and the Wolfrace type that you used to see on TR4's. Now I need the shouldered mag wheel style lug nuts,not unilug. Anyone know of a source for these?
 
Most of the racer supply places carry them, I got mine at Summit.
https://www.summitracing.com/search/Part-Type/Lug-Nuts/?keyword=lug+nuts&kr=lug+nuts
Be sure you measure and get the right ones, though. You want threads to match your studs (7/16-20), a shank diameter that fits snugly in the wheel, and a shank length that extends almost, but not quite, all the way through the wheel. Also check that you get the flat washers (if your wheels take them). They came with the nuts I bought, but not all of them include the washers.
 
Hey Randall I was hoping you'd reply as I knew you had a similar set of alloys. Summit has some Cragar lugs 27721-4 (7/16x20RH) that look like they would fit the bill but I'll have to wait till I receive the wheels to check the specs. THe alloys are Shelby's and they will definetly fit the TR3 and the TR6 according to the PO who has tried them on same. The Cragar lug nuts have a shank length of 0.800" and a lug nut shank diameter of 0.684" How do I or with what do I take the measurements?...with a micrometer? Thx Karl
 
A common dial (or digital) caliper will do fine. I keep several of them scattered around, as I find them really handy. I buy from Enco https://www.use-enco.com/CGI/INSRIT?PMAKA...p;PARTPG=INLMPI
https://www.use-enco.com/CGI/INSRIT?PMAKA...p;PARTPG=INLMPI
as I don't quite trust HF for measuring tools. Enco probably buys from the same source (for their cheap 'Import' models), but they seem to have somewhat better inspection.

0.8" sounds too long, but I just don't remember offhand (and yours may not be the same). For the thickness measurement, use the "depth" end of the caliper, with the base of the caliper resting on one side of the wheel, and a flat surface of some sort on the other side. You don't need extreme precision here, plus or minus .010" is OK (as long as you allow more than that between the thickness of the wheel and the length of the shank).
 
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