Shaft Collar, System of Measurement Inch, Shaft Locking Type - Couplings 1 Piece Set Screw, Bore Type - Collars Plain Bore, Bore Dia. 3/16 in, Material - Collars Steel, Outside Dia. 7/16 in, Width 1/4 in, Clearance Dia. 0.4375 in, Screw Size 8-32 x 1/8 in, Screw Material Steel, Operating Temp. Range 0 Degrees to 300 Degrees F. This item has been restricted from sale in the following state (s): []