Linear Shaft, System of Measurement Inch, Diameter 1 in, Shaft Type Pre-Drilled Shaft, End Type Plain Ends, Core Type Solid, Overall Length 48 in, Surface Hardness - Minimum 60 HRC, Material Carbon Steel, Finish Unfinished, End Thread Size Not Applicable, Mounting Hole Thread Size 1/4-20, Diameter Tolerance - Minimum 0.999 in, Diameter Tolerance - Maximum 1 in, Mounting Hole Center to Center 6 in, Mounting Hole Center to Shaft End 3 in, End Thread Length Not Applicable