Selden Halyard Box - Plain Sheave.
Used on the inboard end of RS400 bowsprit.
The sheave box is manufactured from a high-load composite material offering the ultimate in strength, weight and performance.
Wear guards have been developed to protect the sides of the sheave box where the line entering the box is off set (e.g spinnaker halyards).
- Diameter: 21mm
- Width: 9mm
- Bore: 4.2mm