Clamps And Couplers

Fixture-hanging and tube-joining hardware, predominantly Global Truss with support from Equinox, Elumen8 and VMB, covering more than a hundred clamp and coupler variants for stage, event and installation work.

The sub-categories map to distinct jobs. Half Couplers are the standard way to hang a fixture on truss, available in narrow, heavy duty and eye nut versions. Swivel Couplers join two tubes at an angle, either free-rotating or fixed at 90 degrees, and are sized by tube pairing rather than by a single figure. Easy Clamps are self-locking designs built for fast one-handed rigging during a load-in, which is worth the extra outlay on a rig that goes up and down weekly. Boom Arms offset a fixture away from the truss line where the beam angle demands it. Tube To Tube Couplers hold two parallel bars at a fixed spacing, TV Spigots adapt between spigot fittings and clamps, Hook Clamps cover the traditional C clamp pattern, and Clamp Accessories carries the washers, T-knobs and roll pins that go missing.

Two checks prevent almost every ordering mistake here. First, confirm the diameter of the tube you are clamping to: 35mm and 50mm hardware is not interchangeable, and a photograph or a tape measure settles it faster than a part number search. Second, check the fixing thread on your fixture bracket, usually M10 or M12, because the clamp has to marry to the yoke as well as to the tube. Finish matters for a different reason: black disappears in a theatre rig, silver is standard for exhibition and general production work, and mixing them looks untidy on an exposed structure.

Every flown fixture needs an independent safety bond alongside its clamp. Those are in the lighting accessories section, and it is worth ordering both with the fixtures so nothing goes up short.

If a part has to match existing Global Truss stock, quote the part number and we will cross-check it before dispatch. The truss itself is under Trussing & Staging, and the moving head guide covers the fixtures most of these clamps end up holding.

Clamps & Couplers FAQs

Half coupler, swivel or easy clamp? Half couplers are the standard fixture hang; swivels join two tubes at an angle (free or fixed 90°); easy clamps self-lock for fast one-handed rigging. Sized by tube diameter, 48-51 mm covers standard truss.

What load can a clamp take? The manufacturer’s rated capacity, not the bolt’s optimism, check it against the fixture weight plus accessories, and use eye-nut versions where a hoist or steel attaches. The lifting side lives in our chain hoist guide.