Blocks

Harken 29mm Double Bullet Block with BecketLow-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line...

Ronstan BSeries 20 Ball Bearing Block - Uright LeadFeatures:Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammersPrecision molded Acetal sheaves running on stainless steel or Torlon® ball...

Ronstan BSeries 30 Ball Bearing Block - Single - Loo TopFeatures:Low friction 2-stage ball bearing system provides consistent performance over the full working load rangeHigh static and dynamic load capacityLight weightVersatile head fittingsSheaves...

Harken 57mm Carbo Quad Block - SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming...

Barton Marine Series 3 Fiddle, Swivel, Becket, and Cam Block - 45mmPlain Bearing BlocksBarton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads...

Ronstan BSeries 20 Ball Bearing Block - Double - 2-Axis Shackle HeadFeatures:Low frictionHigh static and dynamic load caacityLightweightPrecision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low...

Schaefer Marine Clamp-On Furling Line Stanchion Lead Block - 1" Ball BearingDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainless steel cage and strap ensure durability.Specifications:Stanchions 1" (25mm) in...

Harken Midrange Single with Aluminum Sheave BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball bearing system for fast trim and release...

Ronstan Series 30 Block - Single - NarrowFeatures:Lightweight durable constructionEconomicalMaintenance freeHollow rivets accept fixing screws, shackles or can be used as a becket for extra purchaseStainless steel cheeks and Acetal sheaves ensure a long...

Schaefer Marine Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist.Specifications:Sheave Diameter 2"...

Harken 29mm Carbo Air Block with SwivelLow-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy...

Harken 45mm Double Element Block with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal...