White Knight 3806-4 Chrome Finish 12mm x 1.25 Thread Size Spline Drive Lug Nut with Key, (Pack of 4) Thread size: 12 millimeter x 1.25 Height: 1.37 inch Key adapter hex size: 3/4 inch or 13/16 inch Seating: Conical 4 lug nuts, 1 key adapter