PBC Linear SRM12PD 0600 SL Pre Drilled Linear Shaft Support Rail, Aluminum, 12 mm Shaft Dia, 600 mm Lg 20KZ54 000 lb Maximum Leg Spread 000 lb Maximum Leg Spread 23 1 2 in Tool Weight 27 lb Compatible Pipe Material Metal Number of Rollers 2 Package Quantity 1 allowing customization based on specific respiratory hazards For Use With Linear Shafting Material Aluminum Mounting Hole Center to Center 120 mm Finish Unfinished For Use With Linear Shafting Shaft Material Carbon Steel Product Type Linear Support Rail Shaft Material Grade 1060 Standards ISO System of Measurement Metric Support Rail Material Aluminum Support Rail Drilling Pre Drilled Mounting Surface to Shaft Center 28 mm Mounting Hole Type Threaded Series SRMPD Profile Type Standard Profile Mounting Hole Center to Shaft End 60 mm Surface Hardness Minimum 60 HRC Rail End to Hole 60 mm Country of Origin United States