Premium Chrome Tuner Acorn Open End Lug Nuts Heat Treated Wheel Locks +1 Key (Quantity: 24 Pieces) (12x1.25) Perfect for today's high-tech aftermarket wheels, with small diameter/deep lug holes. Socket Adapter Hex Size: 3/4" & 13/16" Lug nuts are heat treated and thru-hardened for max durability and tensile strength. Please refer to the photo's for additional dimensions.