As mentioned by Mark, one of the differences between these wheels and the original wheels is the lug bores are much deeper on the group 4 wheels. This means the original nuts are completely out of sight down inside the bore. Also, the bore in not quite big enough for a 22mm socket so you would have to grind one down to get it to fit. I came up with another solution however, I bought some M12x1.5 - 60 degree taper open nuts that are only 16mm tall. These have a 19mm head size so no need to grind a socket. These nuts will hold the wheels on and the original nuts can go right over the top as there is plenty of thread sticking out of the top of the open nut. I did no torque the De Tomaso nuts though as they are now only for show, just tight enough to stop them coming off. Now the nuts stick out of the bore just right and look perfect. The rechromed nuts in the picture are not the original brass De Tomaso nuts. Mr Braithwaite changed these years ago because his original wheels are the later forged type not sand cast and are slightly thinner centre that means the stud goes too far into the nut and pops the De Tomaso logo off the end of the nut. This cant be reattached without soldering and rechroming! This would not have been a problem now of course as they are only held on by approx 8mm of thread.
Johnny
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