PBC Linear NIPDM16 0300 SL Pre Drilled Linear Shaft, Polished Carbon Steel, 16 mm Dia, 300 mm Lg MG F55 011 4375" Thread Type UNC Thread 4375" Thread Type UNC Thread Fit Class 2A Length 1 1 4" Threading Fully Threaded Thread Spacing Coarse Head Width 5 8" Head Height 9 32" Material 316 Stainless Steel Tensile Strength 70 See the full list of Tripp Lite NUT compatible UPS systems at http: www Core Type Solid Lined Bearings Finish Polished Mounting Hole Center to Center 150 mm Shaft Material Carbon Steel Shaft Hardness RC 60 Shaft End to Hole 75 mm System of Measurement Metric Standards ISO Product Type Linear Shaft Shaft Material Finish Polished Surface Roughness 8 12 RMS Shaft Material Grade 1060 Shaft Hole Spacing 150 mm Shaft Drilling Pre Drilled Mounting Hole Type Tapped Surface Hardness Minimum 60 HRC End Type Plain Ends Core Type Solid Series NIPDM Weight Per Meter 1