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Harken 57mm Ratchet Block (Swivel, 40mm Side Carbo

SKU# HC8454
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Harken 57mm Ratchet Block (Swivel, 40mm Side Carbo is backordered and will ship as soon as it is back in stock.


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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): 175.5 mm
  • Length (in): 6 29/32 in
  • Weight (g): 565 g
  • Weight (oz): 19.8 oz
  • Shackle pin Ø (mm): 6 mm
  • Shackle pin Ø (in): 1/4 in
  • Maximum line Ø (mm): 10 mm
  • Maximum line Ø (in): 3/8 in
  • Holding power: 10:1