Harken 29 mm Triple Block — Becket, Cam Cleat

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming.

Product Specifications

Sheave Ø (mm) 29 mm
Sheave Ø (in) 1 1/8 in
Length (mm) 85 mm
Length (in) 3 3/8 in
Weight (g) 133 g
Weight (oz) 4.7 oz
Shackle pin Ø (mm) 5 mm
Shackle pin Ø (in) 3/16 in
Maximum line Ø (mm) 6 mm
Maximum line Ø (in) 1/4 in
Maximum working load (kg) 408 kg
Maximum working load (lb) 900 lb
Breaking load (kg) 816 kg
Breaking load (lb) 1800 lb
Footnote Maximum working loads and breaking loads for blocks based on cam strengths.