Shaft Collar, System of Measurement Inch, Shaft Locking Type - Couplings 1 Piece Set Screw, Bore Type - Collars Plain Bore, Bore Dia. 1 1/8 in, Material - Collars Stainless Steel, Outside Dia. 1 3/4 in, Width 5/8 in, Clearance Dia. 1.75 in, Screw Size 5/16 In. -18, Screw Material Stainless Steel, Operating Temp. Range -40 Degrees to 800 Degrees F. This item has been restricted from sale in the following state (s): []