Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226]

57mm Aluminum Low Load Black Magic Block with SwivelBlack 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 the line from twisting. Low-load blocks have red isolators. They use Torlon® rollers and 316 stainless steel shackles. Standard blocks have 17-4 PH stainless head posts. Torlon is a registered trademark of Solvay Advanced Polymers L.L.C. Specifications: Sheave: 57mm/2-1/4in Length: 119mm/4-11/16in Weight: 154g/5.44oz Shackle Pin: 6mm/1/4in Maximum Line: 12mm / 7/16in Maximum Working Load: 7/16kg / 1655lbs Breaking Load: 1500kg / 3300lb

Brand: Harken Category: Blocks SKU: MM-93959 Options: 1 Availability: Available for sale

Need help confirming whether Blocks is the right fit? Contact Marinautical before ordering if you need help with compatibility, mounting, replacement matching, or marine-use recommendations. Product handle: harken-57mm-aluminum-low-load-black-magic-block-w-swivel-3226

Shipping and availability may vary by product and supplier. For time-sensitive orders, special handling, or product questions, contact Marinautical before checkout so we can confirm the best option.