Harken 57mm Carbo Ratchet Block w/Cam Cleat

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Carbo Ratchets allow sailors to hand-hold loaded lines and offer balance between holding power and controlled easing.

  • 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) 103 mm
  • Length (in) 4 1/16 in
  • Weight (g) 247 g
  • Weight (oz) 8.7 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
  • Holding power 10:1 

DO NOT use Harken equipment for human suspension unless product is specifically certified and labeled for such use.

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