Softride Quiet Ride Locking Tightening Hitch Pin; Anti-Rattle for Receiver Hitches, Bike Racks, or Boat Trailers; Silence the clanking noise that occurs while towing (25219) : Amazon.co.uk: Automotive
Hollywood Racks Locking threaded Hitch Pin With Cable
Thule Snug Tite Lock - Accessories
Buy Thule Chariot Bicycle Trailer Locking Pin for Axle Connector at HBS