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40 mm Double Block

Part No. 2642

Sheave Ø (mm) 40 mm

Sheave Ø (in) 1 9/16 in

Maximum line Ø (mm) 10 mm

Maximum line Ø (in) 3/8 in

Maximum working load (kg) 440 kg

Maximum working load (lb) 970 lb

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)40 mm
Sheave Ø (in)1 9/16 in
Length (mm)89 mm
Length (in)3 1/2 in
Weight (g)80 g
Weight (oz)2.8 oz
Shackle pin Ø (mm)5 mm
Shackle pin Ø (in)3/16 in
Maximum line Ø (mm)10 mm
Maximum line Ø (in) 3/8 in
Maximum working load (kg)440 kg
Maximum working load (lb)970 lb
Breaking load (kg)1080 kg
Breaking load (lb)2380 lb