Part No. 340
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)29 mm
Sheave Ø (in)1 1/8 in
Length (mm)66 mm
Length (in)2 5/8 in
Weight (g)26 g
Weight (oz).9 oz
Shackle pin Ø (mm)4 mm
Shackle pin Ø (in)5/32 in
Maximum line Ø (mm)8 mm
Maximum line Ø (in)5/16 in
Maximum working load (kg)150 kg
Maximum working load (lb)330 lb
Breaking load (kg)454 kg
Breaking load (lb)1000 lb
