The fischer cavity metal anchor HM-H is a versatile cavity fixing with an angle hook for all panel building materials. The fixing is set with the fischer installation pliers HM-Z 1 in the pre-positioned installation. The fixing is pulled in the cavity against the board building material with the pliers. In this case, the expanding arms swing open and press onto the reverse side of the board. As an alternative, it is also possible to assemble manually. The cavity metal anchor HM-H is suitable for fixing lights, pictures, and lightweight wall shelves in internal areas.