Suitable screw for 15mm plywood against steel stud

[Derbyboy]

Is this a suitable screw for 15 mm plywood against a steel stud?

https://www.beijerbygg.se/privat/sv...skruv/spånskruv-wing-fzb-3-8x30-800-005990398

 

[surris]

Is this a suitable screw for 15 mm plywood against steel stud?

[link]

Use drywall screws for steel studs, works fine.

 

[prototypen]

One SHOULD drill holes through the plywood, there's a high risk that the plywood will not lie flush against the beam.

Protte

 

[Demmpa]

I have used the following OSB/chipboard screw when mounting OSB boards on steel studs.
https://www.gunnebofastening.se/produkt/?product_id=96&family_slug=skruv

A bit difficult to start screwing in the middle of a stud, but 200-250 from, for example, the previous screw is no problem.

 

[surris]

One SHOULD drill holes through the plywood, high risk that the plywood will not lay tightly against the frame.

Protte

Feels a bit like overkill, but interesting thought. That would be a lot of drilling

 

[Rickard.]

One SHOULD drill holes through the plywood, there is a high risk that the plywood will not lie flush against the stud.

This is exactly what wing screws solve in one go. I tend to use them quite frequently at work to attach timber and plywood to slightly thicker metal where you absolutely need a drill point.

For steel studs, however, I think it's better without a drill point, so I would go for chipboard screws for metal, like e.g. https://www.hornbach.se/shop/Spansk...forzinkad-250st/6199110/artikel-detaljer.html

 

[Derbyboy]

This is exactly what wing screws solve in a moment. I tend to use them quite frequently at work to fasten timber and plywood to slightly thicker sheet metal where you absolutely need a drill point.

For steel studs, however, I think it's better without a drill point, so I would go for particle board screws for sheet metal such as [link]

and drilled beforehand or do you mean that the grabber goes through an ordinary sheet metal stud?

 

[Derbyboy]

I have used the following OSB/particle board screw when mounting OSB boards on steel studs.
[link]

A bit difficult to start screwing in the middle of a stud but 200-250 from, for example, the previous screw is no problem.

You've been using the 55 long ones, right? The shorter ones only have 5mm free thread. It's hard to drive into a 15mm plyfa.

 

[Rickard.]

GRABBER special screw for wood-based panels such as chipboard, plywood, and OSB. For mounting against wood or steel 0.46-1.0 mm, with self-countersinking head.

This was just the first Google suggestion which was unnecessarily long, just wanted to show that there are screws for this.

 

[Derbyboy]

Sure, but before I even created the thread, I read what you wrote in another thread. I thought it sounded great.

 

[Derbyboy]

Thought it sounded awesome.....

 

[Rickard.]

Hahaha there you see, I must have been young and dumb back then. As I said, I use a lot of wing screws on 1.2-1.8mm steel and they are awesome for that. With really thin sheet metal profiles, a drill tip is just a disadvantage.

 

[Derbyboy]

Now 18 months later you are old and wise

But then I will continue searching....

 

[Rickard.]

Now 18 months later you are old and wise

But then I will continue to search....

No, I am still young and foolish and it will probably continue to be that way for another 20-70 years.

Of course, the wing screws will work, it's not that, but I would have chosen something more like the other one I linked. I suspect it will be cheaper that way too.

 

[Demmpa]

I used the short 3.9*28; if I had taken the long ones, the screw head would not have touched the OSB when the thread had passed the steel rule, as there would have been a gap of about 8mm (21-11=10). The thread on the screw doesn't go through the steel rule directly; instead, the screw spins a number of turns in the OSB board before the screw starts pulling the steel rule.