Climax Part ISCC-050-050 Mild Steel, Black Oxide Plating Clamping Coupling, 1/2 inch X 1/2 inch bore, 1 1/8 inch OD, 1 3/4 inch Length, 8-32 x 1/2 Clamp Screw
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Feature
Effective on hard and soft shaftsDesign fully engages the shaft without marring
High axial load and torque capacity
Tolerance: +.003/-.000
Black oxide provides some corrosion resistance