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Cross-braced lighting truss rigged overhead in a theatre, held together with clamps and couplers

Clamps and couplers - half, swivel, self-lock and quick couplers for 48 to 51mm scaffold and fly-bar tube, load-rated and stocked by TSA

Rigging hardware · Clamps & couplers

The fittings that hold the rig.

Half, swivel, self-lock and quick couplers for 48 to 51mm scaffold, truss and fly-bar tube. Load-rated, stamped, and stocked in black and silver - supplied and supported Australia wide.

Compare the range →

Or call 1300 439 872

  • 48-51 mm Standard tube fit
  • 750 kg Top half-coupler WLL
  • 360° Swivel rotation
Trusted on stages and in venues around Australia
Alder Construction Anglican Church Grammar School Annie Apollo Property Group Arts Queensland Back to the Future Beetlejuice Brisbane Powerhouse Brisbane Showgrounds Built Cairns Convention Centre Canberra Theatre Centre Capricorn Rigging Crossroads Live Crown Resorts Disney Diversified Edith Cowan University Encore Gold Coast Convention and Exhibition Centre Griffith University Hamilton HOTA Home of the Arts Ipswich Civic Centre Lendlease The Lion King Livingstone Christian College Logan City Council Mackay Regional Council Melbourne Olympic Park Michael Cassel Group Microhire MJ The Musical Moulin Rouge Mueller College Multiplex National Gallery of Victoria Queensland University of Technology Res-X Universal Studios University of Adelaide University of Melbourne WA Department of Local Government, Sport and Cultural Industries Wicked Wollongong City Council
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Half, swivel, self-lock and quick
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Top half-coupler working load
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Swivel coupler rotation
AU
Load-rated and stocked Australia wide
Close shot of a coupler resting on grey carpet beside a flight case, its rating sticker in view.
Rigging hardware A coupler with its stamped rating sticker.
What a coupler does

The fitting that
holds the rig.

A coupler is the fitting that connects gear to a tube. All four types fit 48 to 51 mm scaffold, truss and fly-bar tube and are supplied load-rated and stamped with a working load limit. Part of the full Lifting & Rigging range.

  • Half coupler. Clamps one tube for a fixed point: lights, speakers, pipe-and-drape.
  • Swivel. Joins two tubes at any angle.
  • Self-lock. Grips under load, fast to rig and de-rig.
  • Quick. Hook on, tighten, move on.
48-51 mm tube fit 100-750 kg WLL M10 / M12 bolt Black / silver ~5x safety factor
Dimensioned line drawing of a half coupler - front and side views showing the 48 to 51 mm tube bore, 30 mm width and 37 mm height, with the wing-screw clamp
In the rig

Couplers on the tube,
where they work.

Half couplers and G clamps on truss tube, close up. Select a numbered pin to see what each fitting does.

Where couplers earn their keep

From fly bars to ground support.

Schools & education

Rated, stamped fittings a school crew can rig and check with confidence.

Performing-arts venues

Half couplers off the fly bars - lights, speakers and pipe-and-drape.

Touring & production

Swivel and quick couplers to brace and cross-tube truss fast on the load-in.

Film, TV & broadcast

Self-lock couplers for fast grip-under-load fixing on tight strike and rebuild.

The range

Pick the coupler,
not the compromise.

Four coupler families on one tube standard. Pick by the job.

48-51mm tube Load-rated and stamped Half 100 to 750 kg Swivel 100 to 500 kg Self-lock and quick 250 kg Stated safety factor, AS 4991 approach
WLL100 / 500 / 750 kg
Tube fit48-51 mm
BoltM10 (M12 at 750 kg)
FinishBlack or silver
CertificationLoad-rated, WLL stamped
Best forLights, speakers, pipe-and-drape
Half coupler · fixed point

One jaw. One fixed connection.

A single forged jaw on one tube: the fixed-point fixing for lights, speakers and pipe-and-drape.

WLL100 / 200 / 500 kg
Tube fit48-51 mm
Pin30 mm (50 mm at 500 kg)
Rotation360 degrees
FinishBlack or silver
Best forBracing, cross beams, angles
Swivel coupler · any angle

Two tubes, any angle.

Two jaws on a central pin join two tubes and rotate a full 360 degrees, for bracing, cross beams and non-standard structures.

WLL250 kg
Tube fit48-51 mm
FixingBolt, ring, butterfly nut
ActionSelf-grip + T-handle
FinishBlack or silver
Best forQuick installs and de-rigs
Self-lock coupler · grip under load

Hooks on. Grips under load.

Hooks onto the bar and grips automatically as soon as the load applies; you set final tension with the T-handle. Fast and secure for quick installs and de-rigs.

WLL250 kg
Tube fit48-51 mm
Width30 mm
BoltM10
FinishBlack or silver
Best forFast fixture hanging
Quick coupler · fast fixing

Hook, tighten, go.

Hook it on, tighten, move on: the time-saver for hanging fixtures without threading a bolt every time.

Not sure which coupler your rig needs? Tell us the tube size, the load and the angle, and we will spec it. Couplers pair with the LITEC truss range and the full rigging line.

Australia wide

Held in stock. Supplied Australia wide.

Common couplers ship fast, in black and silver, supplied and supported by our team.

A truss grid rigged above a concert hall stage, joined with couplers.
On the job

Four coupler families on one tube standard. Pick by the job.

Above the stage A truss grid rigged in a concert hall.
Take the specs with you

The range, in your inbox.

FAQ

Questions
about clamps & couplers.

If your question isn't here, call us or send your tube size and load - we'll come back with the right coupler for the job.

Call 1300 439 872 →
Every coupler fits 48 to 51 mm tube, the standard outside diameter for scaffold, truss chord and theatre fly bar. Half, swivel, self-lock and quick couplers share that fit, so one fitting standard works across your rig. Tell us your tube and we will confirm the right coupler before you order.
  • Half coupler: a single jaw on one tube for a fixed-point connection. The fit for hanging lights, speakers and pipe-and-drape.
  • Swivel coupler: joins two tubes and rotates a full 360 degrees. Handles bracing, cross beams and non-standard structures where tubes meet at an angle.
Stocked ratings:
  • Half couplers: 100, 500 and 750 kg
  • Swivel couplers: 100, 200 and 500 kg
  • Self-lock and quick couplers: 250 kg
Every figure is a working load limit, rated to a stated safety factor rather than a breaking load. Confirm the exact rating for your load case with us before you order.
It hooks onto the bar and grips automatically as soon as the load is applied; you then set final tension with the T-handle. The pick for quick installs and de-rigs where you want a secure single-tube fixing without threading a bolt every time.
Yes. Couplers are supplied load-rated, stamped with their working load limit and built to a stated safety factor, consistent with the AS 4991 approach to rigging hardware. Ask us for the current certification and load documentation for your selected coupler.
Black and silver. We hold the range so common couplers ship fast, and we supply Australia wide. Tell us the coupler, finish and quantity and we will confirm availability and turnaround.
Spec your couplers

Tell us what
your rig needs.

Send the tube size, the load and the angle. We will spec the right couplers, supply them, and support them - here and on the road.

Talk to our team →
  • We talk. The tube size, the load and the angle.
  • We spec. The right couplers.
  • We supply. Supplied and supported, here and on the road.