All Lug Nuts are 1" Hex head and use a standard 1" socket.
Steel lug nuts are coated to prevent corrosion.
7/16" Lug Nuts fit most GM Mid Size
1/2" Lug Nuts fit most Ford and Mopar
5/8" Lug Nuts fit most racing wheel studs
Metric lug nut takes 1" socket. Fits 12mm x 1.5 studs