Our Hitch Pin Clip R Clips Retaining Pins Tractor Cotter Pin Hair Pin Assortment Kits are perfect replacements for weaker pins found on equipment such as trailer ball pins, dolly pins, keeper pins, retainer pins hitch, hand truck pin replacements, and tractor cotter pins. They can be applied to a wide range of machinery, tractors, farm equipment, engines, trucks, cars, camper vans, and lawn and garden equipment.By upgrading all your tractor and truck hitches with these high-quality hitch pin clips, you can ensure a secure and reliable connection.