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Harken 57mm Black Magic Loop Block

$226.20 $198.99
(You save $27.21)
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Harken 57mm Black Magic Loop Block

The Harken Black Magic Air Blocks have been redesigned with a sleek new look. Their unique, performance packed engineering remains exactly the same.

Used on offshore boats, these strong, lightweight blocks feature free-rolling, high load Torlon® roller bearings for a high strength-to-weight ratio and reduced wear. Rollers are housed in a center cage and stay parallel for low-friction efficiency. Sculpted hardcoat-anodized aluminum sideplates protect sideload ball bearings. Dissimilar metals are isolated to minimize corrosion.

The soft attachment Loop block has a removable deadend post for attachment to a padeye. Lashings can also be used. Soft Loop attaches securely through sheave center.*

*Loop not included.



  Imperial Metric
Sheave Diameter 2 1/4 in 57 mm
Max Line Diameter 7/16 in 12 mm
Max Working Load 2,500 lb 1,134 kg
Breaking Load 5,000 lb 2,268 kg
Weight 3.23 oz 92 g
Length 3 in 76 mm