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- Only 0.18 kg. 29% of the weight of the standard half coupler.
- Captive knob. Upgraded eyebolt keeps the knob from falling off when working at height.
- 100 kg SWL, TÜV approved. SWL increased from 75 kg to 100 kg; tighten by hand only.
- M10 fixing. Supplied with an M10 x 30 bolt and wing nut; slotted base captivates an M10 nut or bolt.
- 30mm wide aluminium. Polished (T58122) or satin black (T5812201).
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Doughty Clamp - Half Coupler (Super Lightweight)
The Doughty half coupler T58122 / T5812201 is an upgraded Super Lightweight Clamp with very positive feedback on the changes after listening to customers. It solves the old problem of the clamp knob falling to the ground when working at height.
It is an ultra-lightweight half coupler clamp with a weight of 0.18kg, only 29% of the standard one. With a slotted base to captivate an M10 nut or bolt, it enables users to create fixings suited to their own individual requirements.
Widely used in the theatre, film, TV and photographic industries to attach to round tubes or truss chords and suspend luminaires.
Spec Sheet - Doughty Clamp User Manual
Specifications:
- Part Numbers: T58122 - Polished, T5812201 - Powder Painted Satin Black
- Approval: TÜV Approved
- SWL: 100kg
- Tube Diameters: 48mm to 51mm
- Width: 30mm
- Fixings: Supplied with M10 x 30 Bolt & Wing Nut
- Max. Tightening Torque: Hand-tight only
- Weight: 0.18kg
- Material: AW6082 T6 Aluminium
- Finish: Black or Polished Aluminium
- Factor of Safety: 5:1
"We listened to a lot of our customers who said that when working at height it is often frustrating when the knob of the clamp spins off and falls to the ground. We've made some changes to the eyebolt and made the knob captive so that it can no longer fall off. We have also increased the SWL to 100kg from 75kg which we hope will please everyone who is already a loyal user of the clamp." - Mark Chorley, Design Engineer at Doughty Engineering
Manufacturer Information:
Doughty Engineering has manufactured products for the entertainment industry since 1985. Now, it is one of the world’s leading manufacturers of rigging, suspension and lifting equipment for film/TV, theatre and concert halls. As a member of the Professional Light and Sound Association (PLASA), Doughty adheres strictly to the standards of trading expected.




