Patent ID: 8707657

Claim:
A method of mounting an item on a moisture-proof wall of a wet area by a mounting element that seals a receiving hole in the wall, comprising: expanding the mounting element behind the wall, wherein the mounting element includes an expandable sleeve having portions able to expand at a distance from each other along a length of the expandable sleeve and receiving internally at least a portion of a sleeve-shaped pressure part having a closed end and internal threads, and a screw that is screwable internally into the expandable sleeve and carries a reaction washer in a head of the screw, internally expanding the mounting element in the receiving hole, expansion occurring externally further in on the sleeve inside the wall and occurring internally further out on the sleeve in the wall in response to lengthening of the screw and the expandable sleeve in a longitudinal direction, and providing a liquid-proofing around the mounting element introduced into and internally expanded in the receiving hole.