The fischer brass fixing PA 4 is a special fixing for fastening metric screws in thin panel building materials. The brass fixing is set in the pre-positioned installation. When driving in the screw, the plug expands and anchors itself in the building material. The fischer brass fixing PA 4 is ideal for fixing handles, angle brackets, or lamps in wood panel materials, plastic boards, and also in concrete, solid brick, and solid sand-lime brick.