Ok here’s a quick summary of what I achieved so far to fit the vitesse wheels and the nuts used.
I found the nearest fitting diameter was a socket which was as sliding fit in the back of the stud hole. Note that the front of the holes are quite distorted somewhat over the years of use. The most accurate way of measuring was from the back of the wheel.
The OD of the socket was 0.704” but the hole size could have been some .005-.010” more as it was difficult to measure the id of the holes without the correct tooling. These holes are original factory dimensions, 0.709-0.714” I reckon would be the official dimension.
To remove the internal burring on the front edge of the stud hole I used an H8 expandable reamer.
The new nut measurements on the body of the sleeve and the burring to hold the washer on before I machined them down. 5001T
I used a valve seat cutter to created a slight lead in and champher.
Setup the nut in a three jaw chuck and checked for trueness with dial gauge indicator. Achieved about .002” error.
Turned down to 0.701”. This meant that I have at least .006-.016” (including machining error) of clearance with the wheel holes and the sleeve section of the nuts which should hopefully be a reasonable accuracy for true running.
Nuts fitted hard against wheel, washers tight means that the wheel is being clamped sufficiently to the hub.
Note the nuts do not protrude through the back of the wheel, which is good!