The universal metal anchor is suitable for pre-assembled mounting into board construction materials eg plasterboard, chipboard. The choice of the anchor is made according to the thickness of the material of the plate so as to allow for optimal expansion in the cavity. The metric inner thread allows for multiple permits and pulling of the anchored piece. When mounting, the expansion arms open and derail the back of the board. The expanding arms have a large bearing surface and thus allow a high load bearing capacity. The teeth at the edge of the anchor are pushed into the material and prevent the dowel from spinning.