Harken 16mm Air Block

The 16mm is Harkens smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250lb (113kg) maximum working load. The 404 uses an O-ring to keep the line in the sheave during intermittent loading.


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  • Sheave Ø (mm) 16 mm
  • Length (mm) 29 mm
  • Weight (g)10 g
  • Maximum line Ø (mm) 5 mm
  • Maximum working load (kg) 113 kg
  • Breaking load (kg) 544 kg

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