If you make this, post it!

This is a remix of the dry box spool holder https://www.printables.com/model/68223-dry-box-spool-holder to include side mounts for the Rubbermaid container with screws for added strength.  

Best used with button cap M3 machine bolts.  I used 8mm, but 6-10mm should work.

Hex nuts are captive on the inside.

Parts were re-created in Fusion360 based on the originals.  I am not a professional.