Harken 40mm Carbo-Cam cleat Pivoting Lead Block

SKU: 2157

High-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “headknockers” on dinghies and beachcats for sheeting directly from the boom.

Hole spacing and rivet size are the same as Classic models, making upgrades easy. Cam reverses for either up or down cleating.

Can be used as becket block.


  • Footnote: Maximum working loads and breaking loads for blocks based on cam strengths. 
  • Sheave Ø (mm): 40 mm
  • Sheave Ø (in): 1 9/16 in
  • Length (mm): 112 mm
  • Length (in): 4 1/2 in
  • Weight (g): 157 g
  • Weight (oz): 5.5 oz
  • Maximum line Ø (mm): 10 mm
  • Maximum line Ø (in): 3/8 in
  • Maximum working load (kg): 91 kg
  • Maximum working load (lb): 200 lb
  • Breaking load (kg): 430 kg
  • Breaking load (lb): 950 lb
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