These are is a 2x2x6, 2x3x6, and 2x4x6 1-Compartment variants of ZackFreedman's #Gridfinity Window Divider Bins.

These deeper / larger variants will fit bigger items such as long decking screws, construction nails, or whatever else is bigger than the puny 2x1 size Zack seems to contend himself with ;) These boxes still work with the original "Window Box 2xXx6 Faceplate".

Let me know if you're interested in divider variants of this - personally I just needed "bigger boxes" right now so I didn't bother with those variants, but they should be easy enough to add if there is demand.

Original idea by ZackFreedman, check out his YouTube video introducing the system, check out other Gridfinity models, and check out his parametric source file which was used to create these variants.