McGard 21120 Chrome Regular Shank Wheel Locks (1/2" - 20 Thread Size) - Set of 4 Overall Length 1.38", Shank Length .580", Shank Diameter .679" 1/2"- 20 Thread Size 13/16" Hex Size Mag/Shank Style Wheel Locks Set of 4 Locks, 4 Washers and 1 Key