Shaft Collar, System of Measurement Inch, Bore Type Round, Bore Diameter 1/8 in, Bore Thread Size Not Applicable, Collar Outside Diameter 3/8 in, Inside Height to Flat Not Applicable, Clearance Diameter 0.38 in, Collar Width 1/4 in, Collar Material Stainless Steel, Keyway Width Not Applicable, Collar Material Grade 304, Keyway Depth Not Applicable, Thread Direction Not Applicable, Center to Lever Top Not Applicable, Collar Construction 1-Piece, Screw Thread Size #6-32, For Shaft Diameter 1/8 in