Locking Hitch Pins From Buyers Products Help Prevent Trailer Theft. They Work Like Standard Hitch Pins, But With A Deadbolt Style Lock In Place Of A Cotter Pin. The Locking Hitch Pins Are Available In Three Sizes To Fit 1.25 In., 2 In., 2-1/2 In., And 3 In. Receivers. The Lock Portion Has A Powder-Coated Finish, And The Pin Features A Chrome-Plated Finish. Both Finishes Provide Superior Wear And Corrosion Resistance.