Cotter Pin,5/16 in dia,3.5 in L,PK50, System of Measurement Inch, Pin Diameter 5/16 in, Pin Type Extended Prong, Material Steel, Material Grade/Class Ungraded, Finish Zinc Plated, Usable Length 3 1/2 in, Product Type Cotter Pin, Shank Length 3 1/2 in, Manufacturer Location Made in USA*, Standards ANSI B18.8.1, ASME B18.8.1, Package Quantity 50