Hillman 0.243 in. x 4 in. Hitch Pin Clip (10-Pack) 882594 - The Home Depot
Red Handle Hitch Pin 1-3/4" x 8-1/2" | Agri Supply 106346 | Agri Supply
TowSmart Standard 1/2 in. Steel Bent Hitch Pin with Clip - Fits 1-1/4 in. x 1-1/4 in. Hitch Receivers 731M - The Home Depot
Amazon.com: Goreks Trailer Hitch Pin and Clip, 1/2-Inch Diameter Heavy Duty Bolt Mount Hitch Pin, Designed to Fit for Class I and II Receiver Tubes | Features Durable Rust Resistant Finish :