This chrome-plated receiver tube lock has a 5/8" pin diameter that fits all 2-1/2" x 2-1/2" trailer hitch receiver tubes. The high-strength ball interlock design prevents false locking. The pin length measures 3-1/4", and the overall length measures 6-1/4".
DT-31005 Diversi-Tech 5/8" Chrome-Plated Hitch Receiver Tube Lock with Long Span for 2-1/2" x 2-1/2" Receiver Tube