Where can one find something similar?

[nissebrun]

Is there possibly someone who knows where in the country you can buy this (or something similar)? I only find it on a bunch of foreign sites.

 

[Demmpa]

That is a mollyplugg/metallexpander.

http://www.husrenovering.eu/mollyplugg.htm

https://www.biltema.se/bygg/fastelement/expanderskruvar/metallexpandersats-m4-70-st-2000047091

https://www.gelia.se/products/infastning/skivinfastning/metallexpander/4443637/

https://www.proffsmagasinet.se/mask...allexpander-for-tunnplat-m6k-100-pack-3053254