TowSmart Locking Hitch Pin, 1/2in and 5/8in Pin, Stainless Steel, 7276, 2.75in Span, Includes 2 Keys - Walmart.com
Zone Tech Trailer Hitch Receiver Lock Anti-theft 5/8" Pin For Class Iii Iv 2" & 2-1/2" Receiver With Rubber Cap - Receiver-for Tow Trailer, Car, Boat : Target
Locking Hitch Pin for 2\" Receivers | Accessories.Ford.com
Amazon.com: Rhino USA Trailer Hitch Lock - Patented 5/8" Locking Receiver Pin for Class III IV Hitches - Weatherproof Anti-Theft Lockable Pin with Dust, Mud & Gunk Protection - Used to Tow