The COTTER PIN - ZINC 5/16" X 4" is a robust fastening solution designed for reliable performance in automotive and industrial settings. Made from high-quality zinc-coated metal, this cotter pin offers excellent corrosion resistance and durability. With a diameter of 5/16" and a length of 4", it is suitable for securing components and maintaining the integrity of assemblies. This cotter pin is essential for applications requiring a dependable grip to prevent loosening of fasteners during operation.