Two-Piece Clamping Collar Recessed Screw H2C-Series, Climax Metal, 3/4″ bore, 1-3/4″ outside diameter.

Black Oxide Plated Steel Two-Piece Clamping Collar – Recessed Screw Head. Recessed Screw Head provides an outside surface free of major projections for safety. Design fully engages the shaft without marring. Easily installed where major disassembly would otherwise be required. Greater axial holding power than set screw or one-piece clamping collars. Effective on hard & soft shafts.