ZSHKK-625-12000-104SU-A Partial Keyed Rotary Shaft, Material Carbon Steel, Diameter 5/8 in, Overall Length 12 in, System of Measurement Inch, Diameter Tolerance +/-0.0025 in, End Type Keyed, Finish Polished, Keyway Depth 3/32 in, Keyway Length 2 in, 7 in, Keyway Width 3/16 in, Length Tolerance +/-0.0620 in, Step Down Diameter Not Applicable, Step Down Diameter Tolerance Not Applicable, Straightness Tolerance 0.012 in/ft, Thread Size Not Applicable, Groove Spacing Not Applicable