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Hook opening pulley| TH-Nub®


TH-NUB, spherical friction ring type opening pulley for 12 mm ropes, ideal for quickly hooking your ropes even under tension.

Available in single or double version or with open friction ring: TH-M 

Materials : Dyneema® / UHMWPE / Velcro® / Polymers

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Open spherical low friction ring hook NUB for 12 mm rope.

An accessory that can easily be hooked to a genoa or spinnaker sheet or as a replacement for a masthead block.

  • The lightest and strongest removable sheet control solution on the market
  • Can be used on any type of dyneema rope or non-aggressive sheathing
  • Made of hard thermo-plastic polymer in black color and supplied with a spliced Dyneema textile connector. A velcro safety strap keeps the sheet in the open ring while you hook it in the chosen location.
+ Spreadability
  • Repairability category 3

Repairability index - (Link to explanatory table)

Data sheet

  • Nodus-Nub open ring, black thermoplastic resin
  • Sheathed or over-sheathed textile connector, 100% dyneema reference Nodex R2 12 Fx pre-stretched grey
  • T-bone (dog bone) hardened light grey anodized aluminum, dyneema textile connector closure accessory
  • Secure velcro closure by rolling on the textile connector, Twist-lock®


  • Control and return of genoa or spinnaker sheets under tension
  • Allows to hook a rope under load quickly, barber hauler, furler, 3D, ...

Product Details

Product nameBreaking loadLengthWeightØ recommended ropeSail area
Connector Direct 40 nds
Aluminium kg cm gr mm
TH NUB Single 4700 10 40 max 12 170
TH NUB Double 4700 12 72 max 12 170

Advantages :

  • Weight/resistance ratio
  • Lightweight and reliable
  • Twist-Lock type closure that prevents the sheet from coming out
  • Interchangeable dyneema shackle type textile connector
  • Reliable and maintenance-free