Harken 29mm Carbo Double Fixed Block (HK381)

The compact 29mm Carbo is extremely strong. Use our miniature Carbo as a mainsheet block on small dinghies such as the Optimist, or for low-friction control blocks on any size boat.

Doubles and triples feature U-Locks to hold the swivel in front/side position, or to let it spin freely. The triple's compact cam arm supports high-load purchases of 5:1 or 6:1

The line-shedding cheek block features a small mounting footprint and drainholes. The low-profile Ti-Lite replaces the headpost, shackle, and spring with high-tech line.

Use for:
Outhauls
Cunninghams
Vangs
Traveler controls
Barberhaulers
Flag halyards

Features:
Sheave Diam: 29mm
Length: 54mm
Weight w/shackle: 34g
Max Line Diam: 8mm
Maximum Working Load: 299kg
Breaking Load: 737kg