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HarkenHarken 57 mm Triple Swivel Block
Product Description

Use 57 mm Black Magic® AirBlocks® on offshore boats. These strong, lightweight blocks are sculpted aluminum, with Torlon® rollers and carbon-black balls for strength and UV protection. Rollers are housed in a unique center cage and are isolated for less friction. Blocks feature a three-way head system and come in high- and low-load configurations.

Use for:
Sheets, Halyards, Running backstays and Control lines.

Part Number: 1954


Specifications
Imperial Metric
Sheave Dia. - 57 mm
Length 5 3/16" 132 mm
Weight w/Shackle 13.2 oz 375 gr
Shackle Pin Dia. 5/16" 8 mm
Max Line Dia. 7/16" 12 mm
Maximum Working Load 4850 lbs 2200 kg
Breaking Load 9700 lbs 4400 kg

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    Code: HAR1954
    Original Price:$466.75
    Price: $322.10
    (You Save: $144.65)

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