bought a harbor freight tool box - https://www.harborfreight.com/tool-storage-organization/u-s-general-tool-storage/44-in-x-22-in-double-bank-roller-cabinet-yellow-64956.html

I wanted bins to hold my common screws.

1 Bin is 50mm x 50 mm x 50mm

2 Bin is 100mm x 50mm x 50mm

3 Bin is 150mm x 50mm x 50mm

4 Bin is 100mm x 100mm x 50mm

The grid is 4x4 - 200mm x 200mm