Harken 57 mm Swivel Block with Cam Cleat

$143.99
SKU: 2615

The high-load 57 mm Carbo has a broad working range. Use for main and jib sheets on centerboard and keelboats like Lightnings, Dragons, Solings, and J/24s, and for mainsheet systems on catamarans.

Blocks feature Cam-Lock or U-Lock locking systems to lock the shackle in front or side positions, or swivel to keep line from twisting.

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming.

Use for

  • Main/jib sheets
  • Mainsheet fine-tune
  • Control lines
  • Vangs
  • Cunninghams
  • Outhauls

Specifications

  • Footnote: Maximum working loads and breaking loads for blocks based on cam strengths. 
  • Sheave Ø (mm): 57 mm
  • Sheave Ø (in): 2 1/4 in
  • Length (mm): 110 mm
  • Length (in): 4 5/16 in
  • Weight (g): 269 g
  • Weight (oz): 9.5 oz
  • Shackle pin Ø (mm): 5 mm
  • Shackle pin Ø (in): 3/16 in
  • Maximum line Ø (mm): 10 mm
  • Maximum line Ø (in): 3/8 in
  • Maximum working load (kg): 136 kg
  • Maximum working load (lb): 300 lb
  • Breaking load (kg): 340 kg
  • Breaking load (lb): 750 lb
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