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57mm Black Magic® Low-Load Double Block Clearance

HARKEN
57mm Black Magic® Low-Load Double Block

32% Off

$113.77

Original $168.99 Price Details

Model # 1975739 | Mfg # 1952
Limited availability.

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.

  • Used for sheets, halyards, running backstays and control lines.
  • Includes swivel without becket.
  • 5/16" shackle pin
  • Maximum line: 7/16"
  • Breaking strength: 5510 lb.
  • Load capacity: 2755 lb.
  • Length: 5-3/16"
  • Weight: 10.1 oz.

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