TowSmart Standard 5/8 in. dia Steel Bent Hitch Pin with Clip - Fits 2 in. x 2 in. Hitch Receivers 747M
TowSmart® Grade V Hitch Pin at Menards®
5/8 in. Easy Grip Hitch Pin
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 :
Everbilt 1/4 in. x 3 in. Zinc-Plated Cotterless Hitch Pin 815588
Hillman 3-in Silver Hitch Pin/Clip in the Specialty Fasteners & Fastener Kits department at Lowes.com