57 mm Block — Swivel, Becket, Cam Cleat
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
Sheave Ø (in)2 1/4 in
Length (mm)132 mm
Length (in)5 3/16 in
Weight (g)442 g
Weight (oz)15.6 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)272 kg
Maximum working load (lb)600 lb
Breaking load (kg)680 kg
Breaking load (lb)1500 lb
FootnoteMaximum working loads and breaking loads for blocks based on cam strengths.
Manual: 57 mm Carbo Blocks Manual: M1002.pd
