Taper Pin Thread Size 1/2 In.-20 Pin Size #9 Large End Diameter 0.592 in Small End Diameter 0.537 in Pin Type External Threaded with Nut Product Type Taper Pin Material Steel Material Grade/Class Ungraded Finish Plain Shank Length 2 1/2 in System of Measurement Inch Thread Type Fine Pack Size Small Pack Manufacturer Location Globally Sourced Standards ASME B18.8.2 Includes Nut