FlexBilt Customs offers the Standard 5/8" Resettable Combo Receiver Lock. Patented Receiver Lock is a resettable combination lock with a plated steel pin and forged steel lock tip. This 5/8" Pin fits Class III, IV, and V (2"x2") receivers and includes a protective lock head cover. Universal fitment and 2 in stock now for you to purchase right away or get installed.