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Allen Brothers  |  SKU: ALNA20401FH-77

Allen Brothers 40mm Dynamic Fiddle Block with Hook and A..77 Cleat

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Sale price $140.60 Regular price $147.53

Pickup available at 1830 East Interstate 30

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DELIVERY AND RETURN INFO

Allen Brothers 40mm Dynamic Fiddle Block with Hook and A..77 Cleat

40mm Single Dynamic Swivel Hook Block With Fiddle & Cam Cleat

The 40mm Single Dynamic Swivel Hook Block With Fiddle & Cam Cleat is a versatile, high-performance pulley designed for keelboats and dinghies. Manufactured from durable, lightweight glass-loaded nylon and featuring Allen’s advanced Dynamic Bearing Technology, it delivers smooth, efficient line handling for mainsheets, jib sheets, spinnaker sheets, and control line systems.

Combining a swivel hook head, 20mm fiddle sheave, and adjustable cam cleat, this block is ideal for compact purchase systems requiring quick attachment, smooth operation, and secure rope control.

Features

  • Single-sheave block with integrated fiddle sheave and cam cleat
  • Manufactured from durable, lightweight glass-loaded nylon
  • Ideal for mainsheet, jib sheet, spinnaker sheet, and keelboat control line applications
  • Patented Dynamic Bearing System featuring twin rows of stainless-steel ball bearings running on a stainless-steel rail
  • Caged ball bearings for reduced friction and enhanced rolling performance
  • Superior load-carrying capability and long service life
  • 360° Swivelling Hook Head for quick attachment and removal
  • Ideal for lightweight control systems where fast rigging changes are required
  • 20mm Dynamic Bearing Fiddle Sheave ensures smooth, efficient operation in multi-purchase systems
  • A.77 Aluminium Cam Cleat mounted on an adjustable stainless-steel arm for secure line holding and easy adjustment
  • Cleat angle can be adjusted to suit different sheeting positions and line lead angles by loosening the centre fixing, repositioning the arm, and retightening
  • Low-friction, fast-rolling performance across both sheaves
  • Designed for smooth, reliable performance in demanding marine environments
  • Compact, all-in-one solution for applications requiring purchase, cleating functionality, efficient line management, and easy attachment or removal of the block

Technical Description

Accessories Fiddle, Cleat, Hook, Swivel
Bearing Type Dynamic
Configuration Single
Length 134 mm
Maximum Line Diameter 6 mm
Breaking Load 540 kg
Maximum Working Load 80 kg
Height 135 mm
Pin Size 4 mm
Width 48 mm
Weight 154 g
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