Redesigned after the 3D model of Gard7, Keychain pill box.
https://www.printables.com/model/273336-keychain-pill-box
Longer model to accommodate more pills and more tolerance on the thread.
I have designed a narrow model for small pills and a wider model for wider pills.
I printed it with ABS filament, 0.20 mm layer thickness and 15% filling.
No support needed.
The author remixed this model.