Abstract: An arrangment for mounting pipes and the like to a concrete wall or slab comprises a fastening device constructed in the manner of building blocks and consisting of prefabricated parts. A specially designed concrete anchor is inserted prior to pouring the concrete in a reinforcing matrix of a concrete slab or wall. It is possible thereby to keep the distance tolerances between the concrete anchors very small and to standardize all of the parts of the fastening construction, which particularly includes supporting rods, beams and diagonal rods.

Abstract: A concrete anchor is fixedly mounted in a reinforcing grid having a square mesh prior to the pouring of a concrete wall slab. A groove is formed on the concrete anchor between two flanges. The flange and the groove are laid out with respect to their dimensions so that the concrete anchor may be inserted in a mesh and fastened therein by rotation. A connecting nut is capable of being screwed into the concrete anchor. The connecting nut is movable while mounted in the concrete anchor enabling compensation for oblique positions with respect to the external surface of the concrete wall.