Heavy Duty Carbon Steel Material: Heavy duty safety coupler trailer hitch pin made of high quality carbon steel to ensure locking security, durable and sturdy. Secure Hold: These spring loaded locking pins are structurally sound and reasonably constructed, which is very practical to use and will not loosen during use. Wide Application: Ideal for table saws, lawn, gardening, farming, trucks, boats, trailers or other locking applications. Easy to Use: All you have to do is slide the base of the pin into the corresponding slot on your hitch and secure the pin so it is securely closed. Then the pin is firmly locked and will not loosen during use. Product Description Description: 1. Resists rust and corrosion, can be used for a long time for outdoor use, even in the harshest conditions. 2. Convenient and easy to use, secure your equipment, gear, trailers, etc. 3. Use hitch pins for farm, lawn and garden, trailer hitch receivers, and other applications to secure accessories and other farm equipment. Specification: Color: Silver Total Length: Approx. 50mm / 2in Package Includes: 10 * Shaft Lock Pin Note: 1.Please allow 1-2cm error due to manual measurement. 2.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.