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March 28, 2025 2 min read

Allen Brother Sailing Dog Bones

In this video, the team at Sailing Chandlery review Allen Dog Bones,


Allen Dog Bones can be used in a variety of applications on your sailing boat. Ideal for use as soft shackles or as rope stops, they are CNC machined from aluminium, making the Allen Dog Bones extremely hard wearing.


Allen Dog Bones are available in 6mm, 8mm, 10mm and 12mm sizes and a variety of colours from Sailing Chandlery.

Watch Our Product Review

Allen Sailing dog bones 6mm

Specifications

  • Length - 24mm
  • Maximum Outside Diameter - 6mm
  • Minimum Outside Diameter - 4mm
  • Rope Diameter - 2-4mm
  • Breaking Load - 600kgs
  • Safe Working Load - 350kgs
  • Weight - 1gram

Allen Sailing dog bones 8mm

Specifications

  • Length - 32mm
  • Maximum Outside Diameter - 8mm
  • Minimum Outside Diameter - 6mm
  • Rope Diameter - 4-5mm
  • Breaking Load - 1,100kgs
  • Safe Working Load - 600kgs
  • Weight - 3grams

Allen Sailing dog bones 10mm

Specifications

  • Length - 36mm
  • Maximum Outside Diameter - 10mm
  • Minimum Outside Diameter - 6.5mm
  • Rope Diameter - 5-6mm
  • Breaking Load - 1800kgs
  • Safe Working Load - 900kgs
  • Weight - 4.6gram

Allen Sailing dog bones 12mm

Specifications

  • Length - 40mm
  • Maximum Outside Diameter - 12mm
  • Minimum Outside Diameter - 7mm
  • Rope Diameter - 5-6mm
  • Breaking Load - 2,500kgs
  • Safe Working Load - 1,400kgs
  • Weight - 7grams

Allen dog bones summary

Why use a dog bone?

Dog bones have a few simple features to ensure they are suitable for a wide range of applications.

Weight

Dog bones are extremely lightweight. Replacing a metal shackle for a dog bone on the end of a jib sheet will help reduce damage when the clew slaps against the mast, deck or sailor! Reducing the weight on the spinnaker or jib clew will also help the sail set more efficiently.

Low Profile

Streamlining any fitting is always a bonus, it will help reduce windage, thus making the boat more efficient. It can also stop snagging.

Quick and simple

There’s nothing worse than needing to undo a shackle or knot in a hurry, especially as both can require tools in many situations if over tightened. A dog bone however is usually attached via a simple loop in the rope which is quickly and easily undone by hand.

Additional features

Allen dog bones are shaped differently to others on the market.


The triple cut-out design allows the rope to be looped perfectly around the dog bone without loosing any strength in the rope.


The two protruding edges between each of the three tapered cut-outs act as a barrier which stops the dog bone from being able to slip off of the rope.

Cross holes on each end allow for an attachment of a leash line.


The end is also recessed to allow the small knot of the leash line to sit inside the dog bone to keep it flush