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Harken 29mm Block Swivel - 340


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Harken's Product 340 29mm Swivel Carbo Blocks are lightweight; strong, reliable and affordable. These small, compact blocks have lightweight nylon resin sideplates for extra strength and very high working loads. 29mm sheave works with ropes up to 8mm diameter.

  • lightweight
  • compact
  • low friction
  • free running ball bearings run on curved races, dispersing load for increased strength 
  • nylon sideplates add strength and durability.


  • Sheave Ø (mm) - 29mm
  • Length (mm) - 66mm
  • Weight (g) - 26g
  • Maximum line Ø (mm) - 8mm
  • Shackle pin - 4mm
  • Maximum working load (kg) - 150kg
  • Breaking load (kg) - 454kg
  • Model: Harken 29mm Block Swivel
  • Manufactured by: Harken

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