PBC Linear SRM30PD 1000 SL Pre Drilled Linear Shaft Support Rail, Aluminum, 30 mm Shaft Dia, 1,000 mm Lg G2830825 Hanger Type Swiveling Ring Hanger Hanger Type Swiveling Ring Hanger Opening Size 1 3 16" Height When Retracted 20 3 4" Housing Material Aluminum Housing Depth 6 5 8" Housing Width 7 3 4" Mount Type Hanging Reel Type Enclosed Retraction Method Automatic Weight 18 lb 247 SVHC) Compliant RoHS Compliance RoHS 3 (2015 863 EU) Compliant Schedule B Number 392112 Material Aluminum Mounting Hole Center to Center 200 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 53 mm Mounting Hole Type Threaded Series SRMPD Profile Type Standard Profile Mounting Hole Center to Shaft End 100 mm Surface Hardness Minimum 60 HRC Rail End to Hole 100 mm Country of Origin United States Mounting Hole Center to Shaft End 100 mm