I need a rule on the edge of a lightweight concrete wall but when I try to screw it, it doesn't hold or holds poorly. What's the best way to do it?

Doesn't feel stable with either thicker or thinner screws.

Best regards, snickarn
 
  • Cross-section view of an aerated concrete wall and adjacent structure, depicting challenges in screw attachment for stability.
Suitable lightweight concrete plug with screw in the right dimension. I use Essve myself in lightweight concrete and it grips well.
 
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M myrstack said:
Suitable lightweight concrete plug with screw in the right dimension. I personally use Essve in lightweight concrete and it grips well.
Hi, I have tried to screw without a plug. In other walls in the house, it usually works well but here it is porous. Ok, I'll try with a plug and see!

The wall is about 15 cm wide/thick.
 
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