Check the listing for details. Trimax TAR300 Premium 5/8in Anti-Rattle SS Key Receiver Lock. Condition: New. Listed at 39.31 USD. TRIMAX Corporation is the world?s leading lock manufacturer providing customers? high quality products through innovative design. The 5/8" pin fits all Class III, IV and V receiver hitches. Receiver pin easily adjusts for a tight fit. O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use. Pro?ective rubber cap protects keyhole from water, grime and dirt. The 5/8" pin fits all Class III, IV and V receiver hitches. Receiver pin easily adjusts for a tight fit. O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use. Pro?ective rubber cap protects keyhole from water, grime and dirt. Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break. .