Doughty Clamp - Half Coupler 50mm (Slimline & Lightweight) It is a very lightweight half coupler clamp with a weight of 0.24kg, only 38% of the standard one's. This Half Coupler is the Basis of the range of Slimline and Lightweight Doughty Clamps. The 30mm width allows it to be used between truss webs etc. This Clamp has a slotted base to captivate an M12 Nut or Bolt enabling 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/truss chords and suspend equipment and luminaries. For any inquiries, please contact us via chat. Spec Sheet - Doughty Clamp User Manual - Cert Specifications: TÜV Tested and Approved SWL: 300 Kg Tube Diameters: 48 to 51mm Width: 30mm Fixings: M12 Hole Weight: 0.24 Kg Material: Aluminium Finish: Black or Polished Aluminium Hook Clamp • Quick Trigger Clamp • Half Coupler Clamps Manufacturer Information: Doughty Engineering has begun to manufacture 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.