ᐅ Why do screws come loose on Billy shelves despite being securely installed?

Created on: 9 Nov 2023 17:24
Z
Zarplo
Hello everyone,

Lately, while assembling my Billy shelves, I have repeatedly noticed that screws seem to loosen by themselves, even though I tightened them properly. This surprises me because the assembly was solid and done with the right tools. Does anyone know why screws on Billy shelves can keep loosening even when installed correctly? I suspect it might be related to the material properties or the screw system, but I would appreciate a well-founded explanation or any experiences. Thanks in advance!
J
Jeanbar
11 Nov 2023 09:17
KUDAISY schrieb:
Distribute loads evenly whenever possible.

This is often underestimated. A shelf fully loaded with very heavy books in one corner encourages the screws to loosen.
Zarplo schrieb:
Regular retightening would be a sign of poor assembly or quality.

No, this is actually quite normal for Billy shelves. Due to the design and materials, this is even beneficial for stability. Good that you know this now.