1-Piece Clamping Couplings are designed to handle applications that require a greater torque capacity than Setscrew Couplings without marring the shaft. Recessed screw styles of 1-Piece Clamping Couplings are available to provide safety with an outside surface free of major projections. Climax Clamping Coupling, 1-Piece Industry Standard, Series: ISCC, 1-1/4 in Bore, 2-1/16 in OD, 3-1/4 in Overall Length, 175 in-lb Torque, Steel, Black Oxide