Clamp Collar fits 20-3/8" Drum Rim O.D.
- Clamp Collar secures Drum Cone to drum
- Fits 20-3/8" (51.75 cm) drum rim outside diameter, measured with drum lid removed
- Tighten Clamp Collar around top rim of drum with Cone in place
- Tighten Clamp Collar by turning knob on end of threaded rod
- On inside of Clamp Collar, sections of rod retain Cone, and sections of angle engage under top rim of drum