ᐅ Attach cable conduits to the basement ceiling insulation

Hello,

I will soon need to install a large number of cable ducts on the basement ceiling insulation (EPS 8cm (3 inches)) and am looking for an affordable alternative to the rather expensive insulation anchors. Are there screws that hold in EPS without anchors? Or are there other cost-effective ways to fasten all the cable ducts to the ceiling?

Short answer: No, unless you want to use screws long enough to anchor into the ceiling. However, this requires a suitably long drill bit, which can be quite expensive.