Blocks - Single

 The highest strength-to-weight ratio  Minimal friction loss, especially when working at high loads  Totally reliable and trouble free performance  Simplicity of design and construction to...

Harken 57mm Triple Ratchamatic Block - Swivel, Cam Cleat   The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the...

 The highest strength-to-weight ratio  Minimal friction loss, especially when working at high loads  Totally reliable and trouble free performance  Simplicity of design and construction to...

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for...

Harken 75mm Ratchamatic Block - Swivel, Becket, Cam Cleat The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the...

Harken 75mm Ratchamatic Block - Swivel, Cam Cleat The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as...

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for...

Harken 100mm Aluminium ESP Block - Swivel Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to...

Harken Crossover Block, 56mm Crossover blocks provide a cleaner, more efficient deck. These easy-to-install blocks mount behind the stopper bank on each side of the cabin house and can route any...

Harken 57mm Aluminium Block - Swivel, Becket Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for...

Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve bearings to handle high static loads and are ideal for...

Harken Crossover Block, 44mm Crossover blocks provide a cleaner, more efficient deck. These easy-to-install blocks mount behind the stopper bank on each side of the cabin house and can route any...

Harken 5mm Aluminium Fiddle ESP Block - Swivel, Becket Cruising ESP blocks complement our existing blocks in looks and function, but are simpler in design and construction. Sheaves feature sleeve...

Harken 57mm Aluminium Low-Load Block - Swivel, Becket Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are...

Harken 1 Ton Twing Block The new Twing block features a spring loaded side opening mechanism for true one-handed rigging, even while wearing sailing gloves. Black anodized aluminum sideplates are...

Harken 57mm Aluminium Loop Block Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail...

Harken Hexaratchet Block - Swivel, Becket, Cam Cleat, 3" Hexaratchets® grip loaded sheets, yet allow sailors to ease and trim quickly and with complete control. A switch on the side engages and...

Harken 75mm Block - Swivel, Becket, Cam Cleat Low-friction Carbo Air blocks are lightweight, strong, reliable and affordable. Companions to our popular Harken Big Boat blocks, these small, compact...

Harken 57mm Triple Block - Swivel, Becket, Cam Cleat Low-friction Carbo Air blocks are lightweight, strong, reliable and affordable. Companions to our popular Harken Big Boat blocks, these small,...

Harken 57mm Over-The-Top Block Over-the-top blocks lead lines aft over cabin houses, coamings, and splashguards. Part Number Sheave Dia. Length Width Weight Max. Working...