Fully Keyed Rotary Drive Shaft Material Carbon Steel Grade 1045 Diameter 2 7/16 in Overall Length 72 in System of Measurement Inch Diameter Tolerance +/-0.0035 in End Type Keyed Keyway Depth 5/16 in Keyway Length 5/16 in Keyway Width 5/8 in Standards ANSI B17.1-1967 ASTM A-108 R1973 Straightness Tolerance 0.012 in/ft Groove Spacing Not Applicable Number of Grooves 0