Blocks - Single

Harken Aluminium Mastbase Block, 102mm Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase Part Number Length Width Height Weight Max. Working Load Max. Line Dia...

 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 facilitate maintenance and...

 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 facilitate maintenance and...

Ronstan Series 60 Roller Bearing Block, Pivoting Low Lead, Single Maintains alignment with a variable line entry-angle. The line passes through the centre of the pivot support, remaining as close to the deck as possible. The self-contained alloy sheave...

Harken 75mm 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 controls that see lots of action: mainsheet, runner,...

 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 facilitate maintenance and...

Harken 75mm Aluminium Fiddle ESP Block - Swivel, Becket, Cam Cleat 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...

 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 facilitate maintenance and...

 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 facilitate maintenance and...

 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 facilitate maintenance and...

 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 facilitate maintenance and...

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 halyards or limited purchase systems on cruising boats...

Harken Aluminium Mastbase Block - 76mm Low-profile mastbase halyard lead blocks are lightweight and can be grouped in a small area at the mastbase. Download Instruction Manual Part Number HKN-1990 Height (mm) 95...

Harken 57mm Aluminum Loop Block - Wide 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 controls that see lots of action: mainsheet, runner,...

 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 facilitate maintenance and...

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 halyards or limited purchase systems on cruising boats...

Harken 57mm Triple 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 ratchet as loads increase. Shifting between...

 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 facilitate maintenance and...

Ronstan Soft Attachment Snatch Block, 60mm No Soft Shackle High load soft attachment snatch block with no Dyneema® loop provided. The modern snatch block – Ronstan’s SA Snatch Blocks provide the highest load ratings for their sheave...

 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 facilitate maintenance and...