20 mm Ball Bearing Utility Double Block

Series 20 blocks are the perfect choice for all types of dinghy control line applications. Their light weight and high load ratings make them ideal for use in powerful, efficient purchase systems for boom vangs, outhauls, cunninghams and traveller controls.

• Precision molded acetal sheaves
• Stainless steel ball bearings provide high performance & low friction
• SP versions feature a Nylatron sheave suitable for rope and wire
• High static and dynamic load capacity
• Light weight
• Versatile head fittings
• Single blocks are available with swivel head or 2 way loop top
• Double and triple blocks are supplied with shackle and have a 2 way head that can be fixed at 0 or 90 degrees
• Double and triple blocks allow the creation of powerful purchase systems
• Upright lead blocks are available in low profile fixed or pivoting options
• Exit blocks minimise friction in lines passing through the deck or exiting masts and booms. supplied with cover plate, or low profile version with side tabs only
• Linked blocks are used for dinghy barber haulers, cunninghams and spinnaker pole launching systems