DN Type Balljoints.

BS AU 138b:2000 is the most recent standard for Airline Couplings, and the one we would always recommend.


  • Based on DIN 71802
  • All Steel
  • Inner retaining clip and external safety clip.
  • 36°angular movement ( restricted to 15°by safety clip).
  • Zinc plated and trivalent passivated as standard.
  • Sizes M10 and over available on request.
  • Neoprene Gaiter is available.


  • Easily disassembled by removing the safety clip - giving improved access for maintenance.
  • Left Hand Thread available.
  • Body, clip and ballpin available separately.
  • Range of LH/RH M5 rods available from stock to make linkage assemblies.
  • LH thread indicated by groove on body.
  • DN10/M6 available in different body lengths as part of our standard range.
  • Male threaded bodies are available in different body lengths.

DN Type specifications

All Dimensions in mm

Made in the Midlands and exported globally.

As a family-run business we have a tradition of excellence reliability and innovation and are proud to be part of of the renowned industrial heritage of the UK.

Whilst I&R has been a fixture of the Midlands for over 100 years, we are never stuck in the past,  but instead constantly looking for ways to think-forward and conceive new products and capabilities for our growing list of valued and loyal customers.