Hansgrohe AXOR Showerheaven 10625 1 Serie Instructions D'installation page 12

English
Drill the screw holes using a 10mm bit (1).
5
Install the anchors (2). Seal the ceiling around the anchors using
waterproof sealant.
1.
Ø 10 mm
2.
12x
Install the screws.
6
The end of the screw should extend 1 ³⁄₁₆" outside the finished
surface of the ceiling.
12x
~1³⁄₁₆"
12