There are several screwable boxes here on Thingiverse, but I wanted to make one parametric so I could play around with it more easily. Now it's configurable, so you can play around with it even more easily.

You can set:

• Height
• Number of times the thread goes around the box. This is the number of full rotations that it takes to close or open the box.
• Inner radius (mm)
• Height of spirals (mm)
• Thickness of box walls (mm)
• Threads
• Gap between inner and outer box (mm). Adjust to suit your printer.