This is a remix of the Harbor Freight Organizers by golnik, to add:
I needed them because my nut and washer collection happened to be an odd fit for the existing bin types. They fit in the “Storehouse 20-bin Medium Portable Parts Storage Case," SKU 93928, 62778.
I added mouse ears since the corners of these bins curl up on me sometimes but I didn't want to deal with a full brim. They are not perfect but I think they help.
The author remixed this model.
This is another bin type for the original system that has 4 or 8 compartments, models provided for both the lower bin and upper bin.