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Effective on hard and soft shafts
Design fully engages the shaft without marring
High axial load and torque capacity
Recessed screw head provides an outside surface free of major projection for safety
Black oxide provides some corrosion resistance
Rigid Shaft Coupling, 1 Piece Clamp, Inch, Bore Dia. 3/4 in, Steel, Finish Black Oxide, Outside Dia. 1 3/4 in, Overall Length 2 5/8 in, With Keyway, Clearance Dia. 1.75 in, Screw Size 1/4 In.-28, Keyway Width 3/16 in, Max. Torque 1,850 in-lb, Max. RPM 4,000 RPM