Larryo

I just purchased new wheels and snow tires for my SC430 from Discount Tire. Great looking wheels and tires--but The lug nuts are not the Lexus nut and the wheel does not allow the lug nut to enter the wheel like the Lexus nuts do. There are only 5 turns of the lug nut (that is 7.5 mm of bolt engagement) as opposed to the 11 turns of the standard nuts. Any one had a similar experience. Discount tire says it is safe???

Has any one gotten a wheel that uses the standard Lexus lug nuts?

Any help would be appreciated.

RON430

Larryo - Never really ran into this before. Don't have much of an idea but I can tell you from mechanical design that the rule of thumb for maximum strength and holding power is to engage at least a diameters worth of threads. If the diameter of the bolt, or stud in this case, was 15 or 17mm, you would want to engage that amount for maximum strength. Any more and you don't really add any strength and less is less strength. Discount tire might be right though, a typical NASCAR nut doesn't engage very many threads and they don't seem to have any problem. Wish I had a better answer.

Ron