3/8″ X 1 5/8″ Square Pin Sorry, this product cannot be purchased. SKU: 2415 Categories: Locks & Pins, Pins Related products Gooseneck Trailer Lock Call For Price Part #:1404 Receiver Lock T5 Fits 2 1/2″ & 3″ Recivers Call For Price Part #:1635 Universal Premier Coupler Lock Call For Price Part #:1630 5/8″ x 4″ Hitch Pin Call For Price Part #:1255