Taper Pin Thread Size M8-1.25 Pin Size Metric Large End Diameter 13.6 mm Small End Diameter 12 mm Pin Type Internal Threaded Product Type Taper Pin Material Steel Material Grade/Class Ungraded Finish Plain Usable Length Not Applicable Small End Diameter Tolerance +0.5/-1.0 mm Shank Length 80 mm System of Measurement Metric Usable Length Tolerance Not Applicable Thread Type Metric Material Quality Standards Not Applicable Dimensional Standards DIN 7978 Pack Size Small Pack