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Harken Products

Harken 57mm Single Carbo Ratchet Block with Switchable Ratchet, Swivel and Becket (HK2136)

£80.53 | Normal Price: £89.47 | You Save: £8.94 (10%)


Harken 57mm Single Carbo Ratchet Block with Switchable Ratchet, Swivel and Becket

Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.Nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio.

Machined aluminum sheaves are Hardkote anodized for strength and corrosion resistance.

Eight facets hold line securely.

Ball bearings, sheave and sideplates are UV-stabilized with carbon black for maximum protection.

The 57mm switchable ratchets provide precise on/off control with accessible, easy-to-operate on/off switches on both sides of the block.

Use for:

Main / jib / spinnaker sheets,

Mainsheet fine-tune,

Traveler controls,

Genoa leads,



Sheave dia: 57 mm

Length: 94 mm

Weight*: 247 g

Shackle pin dia.: 5 mm

Max line: 10 mm

Max working load: 227 kg

Breaking load: 907kg

* Weight with shackle

**Includes RH fasteners and mounting pad.

***Maximum working loads and breaking loads for blocks based on cam strengths.


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