The fischer aerated concrete plug FFA is a special anchor for fixing in aerated concrete. It is ideal for securely fixing shelves, pictures, lights and radiators in aerated concrete. The plug, made of high-quality nylon, is inserted after pre-drilling in the pre-positioned installation. The spiral-shaped external thread cuts into the aerated concrete with a form-fitting connection. In addition, the plug expands when the screw is turned in. This ensures a high load-bearing capacity and thus added safety. The aerated concrete plug allows for flexible screw selection by accommodating wood and chipboard screws in various diameters as well as metric screws.