Review on DPAccessories 20 Chrome 1/2-20 Closed End Spline Tuner Lug Nuts For Aftermarket Wheels LCS3A2HC2CH04020 by Anthony Tegan

These come with instructions that say they are not for factory rims, only for aftermarket. I think they mean to say that these only fit aluminum rims and not plain steel rims. These fit on factory 1997 Cobra rims perfectly and the threads run all the way to the rotor, so I'm positive that these will hold my spare tire on if the need arises.The lug tool has two different sizes so you can use a 19mm or 21mm socket (lug wrench) on it for greater compatibility. These might be the best/cheapest lugs on the market.