0025 in, End Type Keyed, Finish Passivated, Keyway Depth 3/32 in, Keyway Length 72 in, Keyway Width 3/16 in, Length Tolerance +/-0.Keyed Rotary Shaft, Material 303 Stainless Steel, Diameter 3/4 in, Overall Length 72 in, System of Measurement Inch, Diameter Tolerance +/-0.012 in/ft, Thread Size Not Applicable, Groove Spacing Not Applicable.