Fixing cable in calcium silicate stone slots

Hello everyone,

Does anyone have experience with fixing cables in 11.5mm and 17.5mm calcium silicate bricks in 15mm deep vertical grooves? Neither nail fixings nor cable clips nor anything else can be nailed into this solid stone. In most cases, the nails bend or only go in after several attempts and careful tapping. Only at the joints of the bricks do you often have luck. Otherwise, apparently only one of the following alternatives helps:

[*] Lightly tap in the nail fixings, fix the cable every half meter with plaster blobs, and then remove the nail fixings again before the plasterer comes.
[*] Drill small holes beforehand, insert mini plugs, replace the nails in the nail fixings with corresponding screws, and then screw them into the plugs.

The time required for both alternatives is unfortunately immense!

Known alternatives?
For example, special nails that can conquer calcium silicate brick? :)

Best regards

With the appropriate professional tools, nail anchors are the tool of choice even for calcium silicate bricks.

Fix with hot glue … (spotwise of course)

Drill small holes beforehand, insert mini dowels, replace the nails in the nail fix with corresponding screws, and then screw them into the dowels.

That's exactly how my electrician did it. Apparently, there are suitable sets for this - nails (not screws) + mini dowels.

Had no big problems with Nagelfix from Obo in sand-lime brick. Were the nails too thin? However, I had the same problem with the cheap ones from the hardware store. Sure, it doesn't work quite as well as in Poroton and co., but it works. Then simply fix all the loose areas with electrician's plaster and done. That's how I did it anyway.