California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Shaft Collar, System of Measurement Inch, Shaft Locking Type - Couplings 2 Piece Clamp, Bore Type - Collars Plain Bore, Bore Dia. 1/2 in, Material - Collars 303 Stainless Steel, Outside Dia. 63/64 in, Width 15/64 in, Clearance Dia. 1.073 in, Screw Size 3/32 In. -8, Screw Material Stainless Steel, Operating Temp. Range -40 Degrees to 350 Degrees F. This item has been restricted from sale in the following state (s): []