Shaft Collar, System of Measurement Inch, Shaft Locking Type - Couplings 1 Piece Set Screw, Bore Type - Collars Plain Bore, Bore Dia. 5/8 in, Material - Collars 316 Stainless Steel, Outside Dia. 1 1/8 in, Width 1/2 in, Clearance Dia. 1.125 in, Screw Size 5/16 In. -18 x 1/4 in, Screw Material Stainless Steel, Operating Temp. Range -40 Degrees to 800 Degrees F, Standards USDA/FDA. This item has been restricted from sale in the following state (s): []