Description
Harken 57 mm Carbo Block – Swivel, Becket, Cam Cleat
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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.
| Imperial | Metric | |
| Sheave Diameter | 2 1/4 in | 57 mm |
| Max Line Diameter | 3/8 in | 10 mm |
| Max Working Load | 600 lb | 272 kg |
Harken 2.25" Through-Deck Block 
Ronstan Utility Series 40 Double Block with Becket, 2-Axis Shackle Head 