Linear Shaft, System of Measurement Inch, Diameter 1/2 in, Shaft Type One End Threaded Shaft, End Type One End Threaded, Core Type Solid, Overall Length 4.63 in, Surface Hardness - Minimum 60 HRC, Material Carbon Steel, End Thread Size 5/16-18, Mounting Hole Thread Size Not Applicable, Diameter Tolerance - Minimum 0.499 in, Diameter Tolerance - Maximum 0.5 in, Mounting Hole Center to Center Not Applicable, Mounting Hole Center to Shaft End Not Applicable, End Thread Length 0.39 in