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Doughty Mammoth 90 Degree Fixed Coupler


Tube Size

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Doughty Mammoth 90 Degree Fixed Coupler

The Doughty Mammoth 90 Degree Fixed Coupler provides a firm and fast fixing between two perpendicular bars. The coupler is able to fit two bars with the same diameter (2'') or different diameters (2'' and 2.5'').

Manufactured from high tensile Aluminum Extrusion, it is ideally used in the theatre, film, TV and photographic industries for attaching round tubes or truss chords.

A Swivel version with 2'' and 2.5'' diameters is also available. 

For any inquiries, please contact us via chat. 


  • SWL: 1102 lbs
  • Width: 1.97''
  • Tube Diameters: 
    T57430 & T57431: Fit 2.5'' Diameter Tubes
    T57435 & T57436: Fit 2.5'' Diameter Tube & 2'' Diameter Tube
  • Weight: 1.98 lbs
  • Material: Aluminum
  • Finish: Black or Polished Aluminum 
For more details, please read the technical datasheet [T57430 & T57431T57435 & T57436] and cert [T57430 & T57431T57435 & T57436]

    Doughty Engineering

    Doughty Engineering is a UK-based entertainment equipment manufacturer and began the manufacture of products in 1985. Now, it is one of the world’s leading manufacturers of rigging, suspension and lifting equipment for film/TV, theatre and concert halls.

    Quality and safety are key issues for Doughty. As a member of ESTA (Entertainment Services and Technology Association) and PLASA (Professional Light and Sound Association), it adheres strictly to the standards of trading expected.

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