Anchorage device for fastening on mineral lightweight construction materials

摘要

The anchorage device for fastening on mineral lightweight construction materials exhibits an anchorage plate (1) which is provided with a plurality of mutually axis-parallel through-passage bores (3) and with an anchorage thread (5). Self-tapping screws (2), having the thinnest possible, cylindrical screw core (2''), can be screwed into the lightweight construction material (6) through said through-passage bores (3). The through-passage bores (3) are arranged at a small mutual axial spacing (a) which is at least as large as the screw-head diameter (d) and is not more than 8 to 10 times the diameter of the screws. <IMAGE>