The Rawlplug Frame Fixings Screws is your way to securing screws into a range of materials so that it stays perfectly in place. Particular useful for door and window frames, the screws can also be used for securing form work, suspended ceilings, lightweight steel angles and timber construction when working against concrete, solidhollow bricks as well as aerated concrete blocks. The flat head of the screw allows for a flush installation with the window or door frame while the expansion-free fixing imposes less stress on the substrate during installation. The screw delivers a high load resistancy from a relatively small hole diameter and can be removed easily if being used for temporary works.