2631 57mm Carbo Quad Block


57 mm Quad Block — Swivel

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

Sheave Ø (mm)57 mm
Length (mm)121 mm
Weight (g)340 g
Shackle pin Ø (mm)6 mm
Maximum line Ø (mm)10 mm
Maximum working load (kg)1080 kg
Breaking load (kg)2270 kg

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.


Style Code  2631



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