1200mm Aluminium Sash Clamp1200mm Aluminium Sash Clamp 'U' box section aluminium extruded bar with cast head and foot. Spring loaded quick release adjustment mechanism. 50mm jaw width. Lightweight & strong This quick release sash clamp has a lightweight anodised aluminium bar with a quick release mechanism, allowing the clamp to easily slide along the bar to the desired position Extruded aluminium with cast head & foot Spring loaded rapid adjustment mechanism Can be adjusted