Try these previous threads
https://www.stovebolt.com/ubbthreads/ubbthreads.php/ubb/showflat/Number/1213797/Searchpage/1/Main/177795/Words/%2BLug+%2Bnut+%2BMcMaster+%2B/Search/true/re-lug-nut-size.html#Post1213797


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-