Doughty Trigger Hook Clamp The Trigger Hook Clamp is supplied with a Wing Nut and M12 Bolt Fixing. This Doughty Clamp is designed to allow one person to hang heavy luminaires and scanners. The weight of the object being hung becomes its own safety factor by automatically closing the trigger and the bottom half of the clamp. Trigger Clamp Demonstration This unique feature allows the luminaires to be easily positioned and securely ‘locked off’ using the large easy-grip handle. Constructed from high tensile Aluminium extrusion, the clamp is lightweight and very strong, with a safe working load of 200kg. It is also available in Black or Polished Aluminium. For any inquiries, please contact us via chat. Specifications : SWL: 200 Kg Tube Diameters: 48mm to 51mm Width: 30mm Fixings: M12 x 45 bolt & wing nut Weight: 0.58 Kg Material: High tensile aluminium Finish: Polished aluminium or black powder-coated Other Trigger Clamps : No fixing or with a wing nut & M12 bolt fixing With an eye for hanging With a 16mm lighting pin With a 19mm spigot With a 29mm receiver With a half connector Swivel coupler