ZSHK-M25-M0300-104SU-A Keyed Rotary Shaft, Material 1045 Carbon Steel, Diameter 25 mm, Overall Length 300 mm, System of Measurement Metric, Diameter Tolerance +/-0.076 mm, End Type Keyed, Finish Polished, Keyway Depth 4 mm, Keyway Length 300 mm, Keyway Width 8 mm, Length Tolerance +/-1.6 mm, Standards ASTM A108, Step Down Diameter Not Applicable, Step Down Diameter Tolerance Not Applicable, Straightness Tolerance 1.1 mm/m, Thread Size Not Applicable, Groove Spacing Not Applicable, Number of Grooves 0