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: 1951

Imperial Metric
Sheave Dia. - 57 mm
Length 5 1/2" 140 mm
Weight w/Shackle 5.5 oz 155 gr
Shackle Pin Dia. 1/4" 6 mm
Max Line Dia. 7/16" 12 mm
Maximum Working Load 1655 lbs 750 kg
Breaking Load 3310 lbs 1500 kg

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Harken 57 mm Low-Load Block w/ Swivel and Becket
Original Price: $ 201.10
Price: $ 121.95
1 available for immediate delivery
    Note: Outlet and Clearance items do not qualify for free shipping or any other special offers. This item is not returnable and all sales of this item are final.

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