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 1 Piece Clamp, Bore Type - Collars Threaded Bore, Bore Dia. 3/8 In. -16, Material - Collars 303 Stainless Steel, Outside Dia. 7/8 in, Width 11/32 in, Clearance Dia. 1.027 in, Screw Size #6-32, Screw Material Stainless Steel, Operating Temp. Range -40 Degrees to 350 Degrees F, Standards RoHS2 Compliant, REACH Compliant. This item has been restricted from sale in the following state (s): []