The lug lugnuts I purchased at a local auto place are 3/4" long. I counted turns when tightening the lugnuts and they turn 8 revolutions. I didn't have time to see how far in parts of an inch that is.
Supposedly, threaded fasteners develop full strength with three full threads engaged (3 turns of the nut). But when It comes to holding wheels on, I'd sure like to see the stud come out the back side of the nut. Flanged pipe connections use that criteria.
Seeing one of your wheels pass you going down the road is a bad thing.
