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Harken | SKU:
HR3387
Harken 57mm Aluminum Loop Block Wide
Sale price
$354.95
Regular price
$403.30
Unit price
Pickup available at 1830 East Interstate 30
Usually ready in 24 hours
Shipping and Delivery
Free shipping for orders of $98 or more (US Continental)
- Free shipping for orders of $750 or more (International)
- Add 3 business days to the standard shipping time for USPS deliveries.
- UPS and FedEx Ground usually take 2 to 5 business days for in-stock orders.
- UPS and FedEx deliver on Saturdays only for Friday overnight shipments, which may incur an extra
charge. - Orders that apply for free shipping will be delivered between 8 and 10 business days.
- International customers will be responsible for any applicable import duties,fees, or taxes.
- Oversized items like whisker poles, spinnaker poles, and tracks over 7 feet require freight shipping, with an estimated cost of $500 depending on the destination.These orders must be delivered to a
commercial address, such as a marina, yacht club, or boatyard where your sailboat is located.
A recipient must be present to sign for the delivery upon arrival,For more info, Click Here.
Harken 57mm Aluminum Loop Block Wide
Sale price
$354.95
Regular price
$403.30
Unit price
Harken 57mm Aluminum Loop Block Wide
Black Magic Air blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems. A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.
Technical Description
| Sheave Ø (mm) | 63 mm |
| Sheave Ø (in) | 2 1/4 in |
| Length (mm) | 88 mm |
| Length (in) | 3 4/10 in |
| Width (mm) | 35 mm |
| Width (in) | 1 3/8 in |
| Weight (g) | 181.3 g |
| Weight (oz) | 6.4 oz |
| Maximum line Ø (mm) | 12 mm |
| Maximum line Ø (in) | 7/16 in |
| Maximum working load (kg) | 1134 kg |
| Maximum working load (lb) | 2500 lb |
| Breaking load (lb) | 5000 lb |
| Breaking load (kg) | 2268 kg |
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