The only receiver lock that will open Jeep key, BOLT Receiver Locks feature a solid zinc core, automotive grade cylinder with patented 6 plate-tumbler sidebar to prevent picking and bumping, a stainless steel lock shutter to keep out dirt and moisture, and a rugged jacket and cap. BOLT Receiver Locks have a Stainless Steel 5/8 diameter shaft (fits class 3, 4 Hitch) and are made in the USA. Limited lifetime warranty.