What did those wheels fit, originally? The center hole is too big, making the studs carry the full weight of the vehicle instead of just holding the wheel on, the studs appear to be almost too short, and the lug nuts seem to be on the verge of pulling themselves through the holes in the wheel. The original equipment lug studs are 7/16-20 thread with 3/4" wrench flats. If you're going to continue to run those wheels, I'd suggest going to a lug nut with 13/16" flats to give them a little safer bite on the wheel taper. 7/16-20 studs should be torqued to no more than 65-70 ft/lbs. to avoid stretching and/or breaking the studs.
jerry
