This Receiver and Coupler Set is made of stainless steel; includes a receiver lock for 2" x 2" receivers with a 5/8" pin that fits Class III, IV, and V hitches; and a coupler lock that fits all standard 2"??"2-1/2" span couplers.
TRIMAX STAINLESS STEEL SXT3 - 5/8" Receiver & SXTC2 - 2-1/2" Span Coupler Lock
TRIMAX STAINLESS STEEL SXT3 - 5/8" Receiver & SXTC2 - 2-1/2" Span Coupler Lock