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Allen 40mm Dynamic Single Block With Fiddle, Hook and Cleat - A20401FH-77

High performing ball bearing block, designed to eliminate friction and allow rope to run at great speeds Read full product description.

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A20401FH-77

Product Information

  • Allen 40mm Dynamic Single Block With Fiddle, Hook and Cleat - A20401FH-77

    New for 2023. 40mm dynamic blocks are perfect for use on main, jib and spinnaker sheets on dinghies and keelboat control lines. Made from high-strength, lightweight glass-loaded nylon and featuring Allen’s dynamic bearing technology for a high-performance block suitable for keelboats and dinghies

    Key Features we love

  • Bearings – Dynamic blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. The ball bearings are caged for further friction reduction. These features provide a superior load-carrying ability and longevity when compared to other bearing systems.
  • Swivel Hook Head – Featuring a 360-degree swivelling hook for super easy attachment. Ideal for lightweight control systems where removal needs to be quick.
  • Fiddle – The fiddle sheave is a 20mm dynamic bearing sheave. This ensures that any purchase systems run as smoothly as possible.
  • Cam Cleat – The A77, small aluminium cam cleat, is mounted to an adjustable stainless steel arm. The arm can be adjusted to suit your sheeting angle by simply loosening the nut and bolt through the centre of the block, loosening the side plates and retightening everything at the required angle.
  • Specifications

    • Breaking Load - 540kgs
    • Length - 134mm
    • Max Rope Diameter - 6mm
    • Shackle Pin Diameter - 4mm
    • Max Working Load - 80kgs
    • Weight - 153grams

Guaranteed For Life

Allen Guaranteed For Life

Allen products are warranted to be of merchantable quality and fit for the purpose for which they are sold. In addition, Allen products are guaranteed for life against defects in workmanship, subject to reasonable use. Allen will replace products which are found to have failed through manufacturing and raw material defects. The parts must have been fitted in accordance with the technical instructions, where present, and in any event following the technical guidance of our stockist or representative.

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