Due to the high expansion ability the standard plug F 12 achieves high pull out loads. It is ideally suitable for solid base materials, but is also characterized by good load values in perforated bricks and aerated concrete. Because of the very good screw guidance, the screw cannot move out of the plug while screwing in, while distinct wings at the plug cause a good twist resistance in the drill hole. Furthermore the strong design prevents bending when hammered in. The plug consists of high quality and ageing resistant nylon for long-term use.