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March 27, 2025 2 min read

Allen Brothers High Load Thimbles

In this video, the team at Sailing Chandlery review the Allen High Load Thimbles.


Allen has expanded their range of high load alloy thimbles. The range is available in a series of eye catching colours, various sizes, which you can splice onto your ropes.

Watch Our Product Review

Allen Brothers 15mm High Load Thimble

This friction ring has an outside diameter of 15mm and an internal diameter of 6mm.


Specification

  • Spliced line size - 4mm
  • Internal diameter - 6mm
  • Outside diameter - 15mm
  • Working load - 300kgs

Allen Brothers 20mm High Load Thimble

This friction ring has an outside diameter of 20mm and an internal diameter of 8mm.


Specification

  • Spliced line size - 5mm
  • Internal diameter - 8mm
  • Outside diameter - 20mm
  • Working load - 400kgs

Allen Brothers 25mm High Load Thimble

This friction ring has an outside diameter of 25mm and an internal diameter of 10mm.


Specification

  • Internal diameter - 10mm
  • Outside diameter - 25mm
  • Working load - 800kgs

Allen Brothers 30mm High Load Thimble

This friction ring has an outside diameter of 30mm and an internal diameter of 12mm.


Specification

  • Internal diameter - 12mm
  • Outside diameter - 30mm
  • Working load - 1000kgs

Allen Brothers 35mm High Load Thimble

This friction ring has an outside diameter of 35mm and an internal diameter of 14mm.


Specification

  • Internal diameter - 14mm
  • Outside diameter - 35mm
  • Working load - 1500kgs

Allen high load thimbles summary

The use of high load, low friction thimbles where blocks may have been used in the past, has simplified areas of rig tensioning such as kicker or down-haul systems.

By splicing the thimble into a dyneema loop it allows far higher loads and enhanced performance.

These high load friction rings feature CNC turned 6082 aluminium, anodised, PTFE coated rings with safe working loads of between 300-1000kg.