Blue Ox BX8858 5/8" Receiver Lock for Class II, III
Receiver Locks measures up to 5/ inch and is used for Class II and III. Locks Blue Ox towbars to base plate and receiver hitch to prevent theft. It prevents accidental unhitching. Chrome plated steel keys won't bend or break. They are water-tight lock heads that seal out dirt and corrosion. Three and four lock sets have matched keys.