McGard Chrome Cone Seat Trailer Wheel Lock Set 1/2 20 Thread Pack of 2. The steel collar on the user friendly key guides the key into the lock pattern. The collar holds the key in alignment for easy installation and removal. The computer generated key designs allow for an infinite number of key patterns. The extra narrow pattern groove on the lock resists the intrusion of removal tools into the pattern. Every McGard wheel lock is fully machined from restricted chemistry steel made specifically for McGard and through-hardened for its unsurpassed level of security. McGards plating process includes several layers of nickel and one layer of microporous chrome producing a superior finish while protecting against rust. For use with single axle trailers. Chrome Cone Seat Trailer Wheel Lock Set comes as a pack of 2. Features of McGard Chrome Cone Seat Trailer Wheel Lock Set 1/2 20 Thread These easy-to-use one-piece wheel locks function like regular lug nuts but require a special key tool for installation and removal Extra narrow pattern groove on the lock resists the intrusion of removal tools into the pattern For use with single axle trailers Quantity: Pack of 2 Wheel Locks Thread Size: 1/2-20; Hex Size: 13/16; Overall Length: 1.46 Package Contents: McGard Chrome Cone Seat Trailer Wheel Lock Set 1/2 20 Thread McGard 74042: Chrome Cone Seat Trailer Wheel Lock Set 1/2 20 Thread Pack of