Should screws pierce the wall plugs?

[Jupiter01]

I am aware that different screw diameters require different plugs but how significant is the length of the screw? I am wondering if I had a 40mm plug and 70mm screw, can it pierce through the bottom of the plug into the depth that has been drilled to accommodate the screw? Is this good practice? Else, I need to have lots of different plug lengths to accommodate the different screws I may use.

Also, are Fischer duopower wall plugs a decent all round plug to use?

Thanks in advance

 

[mrrusty]

It's fine to do that. A waste of a long screw, but the plug will still work fine. As far as plugs go, my favourite have always been thorsman/schneider TP2/B in red and brown, but each to their own.

 

[blup]

I use Fischer sx, the duopower are gimmicky IMO, you can use two plugs in one hole to maximise grip, just snip the head off and cut to size.

Blup

 

[johnny2007]

The screw must protrude from the plug.
Fischer recommends at least 10mm, anything more won't make any difference.
Duo power imo are the best, they grip in all conditions and they also work great on plasterboard.

 

[Jupiter01]

[QUOTE="johnny2007, post: 5193220, member: 181186"Duo power imo are the best, they grip in all conditions and they also work great on plasterboard.[/QUOTE]

That’s my experience too - having used a few different brands.

 

[caveman2]

Thanks all, for your advice.

 

[Safety First]

They are best short enough that the whole length of them have the full width of the screw inside them (with the pointy bit out the end). The best place for a felling wedge, for lifting purps is beaten all the way in.