Screw in, attach to, gypsum and chipboard.

[Atom]

Which plugs sit best in drywall and chipboard?

Molly? (Metal expander)?

How good are these?

http://www.harald-nyborg.se/p4996/fischer-pd-s-12mm-25st-m-skruv

 

[jtl]

In plaster, I would say metal expander. In particle board, I've never needed plugs; instead, I've used the coarsest chipboard screw possible.
I usually use the following as a small guide in the jungle of plug and screw types:
http://www.heco.se/trycksaker/PDFer/Heco_Skruvguide.pdf

 

[jtl]

This guide might provide a bit more info on Fischer's range:
http://www.fischersverige.se/Portal...pdf_dokument/R00123_Snabbguide_2011-03-17.pdf

 

[Atom]

Apparently, Molly is the best.

 

[MathiasS]

Particle board, OSB or plywood is used precisely to avoid using molly......:screwy:

 

[Atom]

Yes. If you build new. Our house is already built and used as a stopover. To get closer to the final construction. But this does not mean that the "shelves" should be placed where the studs are

 

[MathiasS]

Or if you renovate.

But you're asking which plugs fit best in particleboard, and the answer to that is that in particleboard you don't use plugs or molly, you use wood screws.

 

[Atom]

Can a wood screw really support a heavier shelf in particle board?

Edit. According to the tables attached above, Molly is used for particle boards with

 

[MathiasS]

Yes, a wood screw can hold a heavier shelf. Or a kitchen cabinet or an 80-inch flat TV.

If possible, try to use a 5-6mm screw, then it will be as solid as a rock.