Dynaline 102488 3-7/16" Yellow Zinc Dichromate Plated Square Lock Pin

3/8" Diameter. Square Quick Pins are easy-to-use, quick-release pins that are designed for securing equipment in place. They have a square-shaped pin that can be easily inserted and removed, making them ideal for applications that require frequent assembly and disassembly. These pins are commonly used in agricultural and industrial equipment such as trailers, plows, and cultivators.