Linear Shaft Support Bolt Size M4 Finish Gray Anodized Flange Length 44 mm Flange Thickness 4.5 mm Flange Width 10 mm Material Aluminum Mounting Hole Center to Center Distance 16 mm Mounting Hole Dia (mm) 4.5 mm Mounting Surface to Shaft Center (In.) 12 mm Nominal Inside Diameter 8 mm Number of Mounting Holes 2 Overall Height (In.) 21 mm Series LPBM System of Measurement Metric Top Length 26 mm Type Top-Loading Low Profile