![Harken 40mm Carbo Block Single w\/Swivel Bracket [2637]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/1280x1280/products/28526/37125/84444XL__37786.1646201393.jpg?c=1 "Harken 40mm Carbo Block Single w\/Swivel Bracket [2637]")
![Harken 40mm Carbo Block Single w\/Swivel Bracket [2637]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/500x659/products/28526/37125/84444XL__37786.1646201393.jpg?c=1 "Harken 40mm Carbo Block Single w\/Swivel Bracket [2637]")
40mm Carbo Block Single with Swivel & Bracket
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.
Features:
- 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): 220 kg
- Maximum working load (lb): 485 lb
![Harken 40mm Carbo Single Ratchet Block w\/Swivel Becket [2609]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/500x659/products/28532/37131/84450XL__42194.1646201405.jpg?c=1 "Harken 40mm Carbo Single Ratchet Block w\/Swivel Becket [2609]")
![Harken 40mm Carbo Single Ratchet Block w\/Swivel Becket Cam Cleat [2610]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/500x659/products/28533/37132/84451XL__20627.1646201408.jpg?c=1 "Harken 40mm Carbo Single Ratchet Block w\/Swivel Becket Cam Cleat [2610]")
![Harken 40mm Carbo Single Ratchet Block w\/Swivel [2608]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/500x659/products/28531/37130/84449XL__99358.1646201404.jpg?c=1 "Harken 40mm Carbo Single Ratchet Block w\/Swivel [2608]")
![Harken 40mm Carbo Single Fixed Block [2650]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/500x659/products/28528/37127/84446XL__97985.1646201398.jpg?c=1 "Harken 40mm Carbo Single Fixed Block [2650]")
![Harken 40mm Carbo Air Triple Swivel Block w\/Becket [2641]](https://cdn11.bigcommerce.com/s-akrdq0rr06/images/stencil/500x659/products/28336/36809/79737XL__03015.1646197864.jpg?c=1 "Harken 40mm Carbo Air Triple Swivel Block w\/Becket [2641]")