Taper Pin, Thread Size Not Applicable, Pin Size #4, Large End Diameter 0.25 in, Small End Diameter 0.177 in, Pin Type Standard, Product Type Taper Pin, Material Steel, Material Grade/Class Ungraded, Finish Plain, Usable Length 3 1/2 in, Large End Diameter Tolerance +0.0013/-0.0007 in, Small End Diameter Tolerance +0.0013/-0.0007 in, Shank Length 3 1/2 in, System of Measurement Inch, Usable Length Tolerance +/-0.010 in, Dimensional Standards ASME B18.8.2, Pack Size Small Pack