Open End Chrome Acorn Tuner Lug Nuts Heat Treated Wheel Locks With Key (20 Pieces) (12x1.5) Perfect for today's high-tech aftermarket wheels, with small diameter/deep lug holes. 3/4" & 13/16" socket adapter. Please refer to the photo's for lug dimensions. Heat treated for increased strength. Each set contains (20) open end chrome tuner lug nuts & (1) tuner lug key.