Description:The metal frame fixing is a special plug for the stress-free, lasting stand-off installation of window and door frames and of squared timbers. It consists of a metal sleeve and a zinc-plated steel screw. This fixing is set in a time-saving push-through installation. When the screw is tightened, the cone is pulled into the plug sleeve and expands against the wall of the drill hole. This ensures a fixation that is free from tensile force and pressure, thus guaranteeing a secure hold in solid and hollow building materials.