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Harken 16mm Single Air Block With O Ring

16mm blocks offer very high working loads in an extremely small, lightweight block. These diminutive blocks feature a patented bearing system using stainless balls in a captive, grooved race and provide an honest 113kg (250lbs) safe working load.

They are perfect for the new, smaller synthetic control lines found on high-tech dinghies and are the obvious choice for competitive racers. The 404 uses an O-ring to keep the line in the sheave during intermittent loading.


  • Sheave: 16mm (5/8")
  • Length: 29mm (1 1/8")
  • Weight: 10g (1/3oz)
  • Max Line: 5mm (7/32")
  • Safe Working Load: 113kg (250lb)
  • Breaking Strength: 544kg (1200lb)

Manufacturer: Harken

Usual Price£13.48
Discount Price£12.55
You Save 7%£0.93


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