Shaft Collar System of Measurement Metric Bore Type Round Bore Diameter 10 mm Bore Thread Size Not Applicable Collar Outside Diameter 24 mm Inside Height to Flat Not Applicable Clearance Diameter 26.3 mm Collar Width 9 mm Collar Material Stainless Steel Keyway Width Not Applicable Collar Material Grade 316 Keyway Depth Not Applicable Thread Direction Not Applicable Center to Lever Top Not Applicable Collar Construction 1-Piece Screw Material Stainless Steel