Taper Pin Thread Size Not Applicable Pin Size Metric Large End Diameter 8.5 mm Small End Diameter 8 mm Pin Type Standard Product Type Taper Pin Material Steel Material Grade/Class Ungraded Finish Plain Large End Diameter Tolerance Not Applicable Small End Diameter Tolerance +0.000/-0.058 mm System of Measurement Metric Usable Length Tolerance +/-0.50 mm Manufacturer Location Globally Sourced Shank Length Tolerance +/-0.50 mm Standards ISO 2339B Rockwell Hardness B52