Molly plug won't attach to drywall

[frause]

74!

And how far does it stick out from the wall without the stud?

 

[zarkov]

74!

That should be enough through a 45mm stud, provided it is a wall with just one layer of drywall. However, 74mm sounds like a lot for a simple drywall anchor, they are usually only 45-60mm depending on the dimension.

Ok, one last test. Screw in the screw so that it just catches in the anchor and measure the protrusion, how far outside the wall does the screw head end up?

 

[raveper]

Moreover, the threads on molly often break very easily.

 

[Sson85]

recess the mollyn in the rule.

Spread tec7 on the back of the rule, otherwise on the right side, plus some extra angle underneath for example with drywall anchors.
It depends on what you are going to use it for.

 

[Kanelbullen123]

Yes, it does!

I bought one of these too, but the screw didn’t even want to attach without a stud.

Hello.
You're not using the same screw as with Molly for these, are you?
For these, you should use a regular wood screw and not a machine screw. If the stud is 45mm, and the drywall is 13, then a screw with a length of 75-80 should be quite suitable, giving you a 2cm margin.
So a screw 5x85


If you’re close to Hornbach, you can buy them in bulk,

otherwise you have
https://www.biltema.se/bygg/fastelement/traskruvar/traskruv-kullrig-50-x-80-mm-2000047358

https://www.biltema.se/bygg/fastelement/traskruvar/traskruv-elforzinkad-fzb-2000046255

 

[janwide]

It might be that you stripped the threads on the screw. Unscrew the screw and check that the threads are intact and fine all the way. If not, use a new screw.

 

[Mjärn]

Hello.
You don't use the same screw as for Molly with these, right?
For these, you should use a regular wood screw and not a machine screw. If the rule is 45mm, and the plaster 13, then a screw with a length of 75-80 should be quite suitable, giving you a 2cm margin.
So a screw 5x85
[bild]


if you're close to Hornbach, they have them in bulk,

otherwise, you have
[link]

[link]

I had wood screws. 5x85

 

[Kanelbullen123]

I had wood screws. 5x85

hmm, anything different from the installation in the video below?

crazy language, but it has subtitles

 

[Unikt namn]

I never mount Molly without pliers. https://www.biltema.se/verktyg/handverktyg/tanger/specialtanger/metallexpandertang-2000047092

By only screw-expanding it, I find it too often easy to either tighten too little so that it doesn't secure properly, or too much so that threads on the screw or nut break.

Other mistakes I've made include using a Molly plug for double drywall on single drywall. That also went to hell, but I don't remember exactly how it manifested. The brand I buy is marked 4E & 5E for single drywall, and 4D/5D for double drywall.

In the video, it looks a bit odd. If the plug is fully expanded on the backside, it shouldn't flex back and forth unless it's been over-tightened. It should be rigid. So try tightening a bit more, or try with a new plug?

It should turn out something like this.