Linear Shaft, System of Measurement Inch, Diameter 3/4 in, Shaft Type One End Tapped Shaft, End Type One End Tapped, Core Type Solid, Overall Length 12 in, Surface Hardness - Minimum 56 HRC, Material Stainless Steel, Finish Stainless Steel Coated, End Thread Size 5/16-18, Mounting Hole Thread Size Not Applicable, Diameter Tolerance - Minimum 0.749 in, Diameter Tolerance - Maximum 0.75 in, Mounting Hole Center to Center Not Applicable, Mounting Hole Center to Shaft End Not Applicable