Description
Harken 57mm Carbo Swivel Block w/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.
Technical Description
| Sheave Ø (mm) | 57 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 110 mm |
| Length (in) | 4 5/16 in |
| Weight (g) | 269 g |
| Weight (oz) | 9.5 oz |
| Maximum line Ø (mm) | 10 mm |
| Maximum line Ø (in) | 3/8 in |
| Maximum working load (kg) | 136 kg |
| Maximum working load (lb) | 300 lb |
| Breaking load (lb) | 750 lb |
| Breaking load (kg) | 340 kg |
| Shackle pin Ø (mm) | 5 mm |
| Shackle pin Ø (in) | 3/16 in |






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