HARKEN CARBO BLOCK SINGLE CAM BKT 40MM

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)
102 mm

Length (in)
4 in

Weight (g)
122 g

Weight (oz)
4.3 oz

Shackle pin Ø (mm)
4 mm

Shackle pin Ø (in)
5/32 in

Maximum line Ø (mm)
6 mm

Maximum line Ø (in)
1/4 in

Maximum working load (kg)
136 kg

Maximum working load (lb)
300 lb

Breaking load (kg)
272 kg

Breaking load (lb)
600 lb

Footnote
Maximum working loads and breaking loads for blocks based on cam strengths.