Quick Trigger Clamps

Doughty quick trigger clamps are the fast-rigging alternative to standard hook clamps for attaching stage lights, moving heads and rigging accessories to 38–51mm lighting bars, scaffold tube and truss. The spring-loaded jaws stay open and close automatically under the weight of the fixture — leaving both hands free to position the load. The lateral screw position allows the clamp to mount at any point on a truss piece without obstruction from cross webs, a key advantage over standard hook clamps. Built from high-tensile extruded aluminium, TÜV approved, and stamped with SWL.

Browse our full range of Doughty clamps and couplers or learn more about stage rigging for entertainment.

Quick Trigger Clamp Types

• Standard Quick Trigger Clamp — the basis of the range. Fits 38–51mm tube. Spring-loaded jaws, oversized wing nut for easy lock-off. TÜV approved.
• Slimline Quick Trigger Hook Clamp — 30mm wide profile fits between truss webs where a standard-width clamp would not clear. Fits 38–51mm tube.
• Slimline Quick Trigger TV Clamp — slimline trigger clamp with integrated 29mm receiver. Designed for TV and film industry drop arms and pantographs.
• Titan Quick Trigger TV Clamp — heavy-duty trigger clamp for 48–80mm tube with integrated 29mm receiver. For larger diameter tubes in TV and film studios.
• Trigger Hanging Clamp (with Eye) — trigger clamp fitted with an eyenut for wire-hung loads. Weight of fixture automatically closes the trigger. SWL 200kg.
• Quick Trigger Clamp with Half Connector — slimline trigger clamp fitted with a half connector for use with the Doughty Modular Rigging System. Fits 38–51mm tube.

When to Use a Trigger Clamp

• Touring and live events — faster get-in and get-out compared to bolt-tightened hook clamps
• Repertoire theatre — frequent re-rigging between shows without tools
• Moving heads and heavy fixtures — automatic closure under load means one person can position and secure a heavy lantern safely
• Tight truss formations — lateral screw position allows mounting at any point on a truss without cross-web obstruction

What to Look For

• Tube diameter — standard and slimline versions fit 38–51mm; Titan version fits 48–80mm for larger tubes
• Profile width — slimline (30mm) versions fit between truss web bars where a standard 50mm clamp cannot
• Receiver — TV versions include a 29mm receiver for drop arms and pantographs; standard versions use M12 bolt fixing
• TÜV / CE certification — all Doughty quick trigger clamps are independently certified and stamped with SWL

Safety note: Always use a secondary safety bond when rigging any fixture overhead, regardless of clamp type.