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Harken 57mm HL Standup Block

Harken 57mm HL Standup Block

Code: HAR3227
Price: $277.99


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.
Sideplates and sheaves Hard Lube-anodized for maximum UV protection and a smooth surface. Center cage keeps Torlon® roller bearings separated and parallel to reduce friction.
Torlon is a registered trademark of Solvay Advanced Polymers L.L.C.

Tech Specs
Imperial Metric
Sheave Ø 2 1/4 in 57 mm
Length 4 1/2 in 114 mm
Weight 7.04 oz 200 g
Maximum line Ø 7/16 in 12 mm
Maximum working load 2500 lb 1134 kg
Breaking load 5000 lb 2268 kg
Fasteners 1/4 in 6 mm
Fastener circle 1 15/32 in 37 mm
A 2 7/32 in 57 mm
B 2 3/16 in 56 mm
C 1 1/4 in 32 mm

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