The fischer plug S-H-R is a frame fixing made from high-quality nylon. With its long expansion element, the S-H-R is ideal for fixings in perforated brick and aerated concrete. When the screw is screwed in, the plug expands in two directions to provide secure anchorage in the building material. The expansion wings prevent undesired turning, which makes installation easier. The S-H-R is offered in diameters of 12 mm, 14 mm and 16 mm and in a fixing length of up to 240 mm.