ᐅ Which screws are better than the standard fasteners for BILLY?

Created on: 4 Apr 2018 08:12
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enno55
Hello everyone, I’m currently planning to assemble a new Billy shelf and was wondering which screws are actually better than the standard fasteners provided by IKEA. The original screws are usually simple chipboard screws, which I personally don’t find ideal in terms of durability and load capacity.

I’m especially interested in whether there are screws that are better suited for the engineered wood materials used in Billy shelves – specifically, the best combination of material, length, and thread type. I would also appreciate advice regarding strength and load-bearing capacity! Who has experience with effective and long-lasting alternatives?
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LOSAR
4 Apr 2018 11:02
Spax 4 x 40 mm (1.6 x 1.6 inches), galvanized, works very well. No issues with the particle boards.
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PRAPI
4 Apr 2018 11:40
Regarding Tause: To my knowledge, there are no scientific comparisons specifically for IKEA Billy screws, but experience from woodworking is clear.

It all depends on the right combination: the screw material (corrosion-resistant), length, diameter, and of course the thread profile (fine threads are useful for chipboard).

In addition, I recommend pre-drilling the holes before screwing in to avoid splitting the material and to ensure better durability.
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enno55
4 Apr 2018 12:20
PRAPI schrieb:
Additionally, I recommend pre-drilling the holes before screwing in

Thanks, that’s a helpful tip! What drill bit diameter would you suggest in relation to the screw size? I usually skip pre-drilling with the original screws, but when using different screws, I think it makes more sense.

I’m also curious whether any of you prefer specific screw types like Torx, since they often allow higher torque transfer without damaging the screw head?
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Issac_kla2
4 Apr 2018 12:47
enno55 schrieb:
I’m also curious if any of you prefer specific types of screws like Torx

Absolutely yes. Torx screws are excellent for such applications because they make tightening easier and protect the screw head. Unlike Phillips screws, they don’t cam out, which extends the life of the installation and improves stability. If you often assemble medium or larger shelves at home, this is definitely the way to go.

Regarding pilot holes: you should use a drill bit about 70 to 80% of the screw’s diameter so the threads hold well without splitting the wood.
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liken
4 Apr 2018 13:05
70% of the drill diameter is correct. Torx screws make installation easier; most often 4x40 Torx screws are recommended.
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Davidleo
4 Apr 2018 14:23
Issac_kla2 schrieb:
If you often assemble midi or larger shelves at home, this is definitely the way to go.

Exactly! And Spax also offers really good Torx screws! This makes screwing a lot of fun! 🙂 For me, it’s now the standard!