Harken Switchable Single Swivel 57mm
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
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.
Main /jib / spinnaker sheets,
Sheave dia: 57 mm
Length: 103 mm
Weight*: 85 g
Shackle pin dia.: 5 mm
Max line: 10 mm
Max working load: 227 kg
Breaking load: 907 kg
* Weight with shackle
**Includes RH fasteners and mounting pad.
***Maximum working loads and breaking loads
for blocks based on cam strengths.
Partners with +
P&B Pre Bend Measuring Gauge £5.49
TackTick Micro Compass £279.99
C2 NiteStick Extension Mark II Length 1100mm £64.59