5/16 x 4-1/4 Wire Lock Safety Pin Square

The 5/16 x 4-1/4 wire lock safety pin with a square bale handle offers a durable and reusable fastening solution for trailers, agricultural machinery, construction equipment, and industrial applications. Featuring a spring-tension square locking loop and corrosion-resistant zinc plating, it allows fast, tool-free installation and removal while maintaining a secure hold under vibration or heavy use.