Raspberry Pi Zero case/Zero W case/Zero 2 W case (2h print)

With 40x40 extruded aluminum mount, you can get m5 nuts and bolts printed from models 

Nut:

https://www.prusaprinters.org/prints/3246-m5-drop-in-t-nut

Bolt: 

https://www.prusaprinters.org/prints/112339-m5-screws-and-nut-3mm-27mm

If for some reason you don't own 3d printer or you just can't get it printed you can order the model 3d printed from here: https://vulkaza.com/products/raspberry-pi-zero-case-3-cases-2-colors-14-parts

If you wish you can donate on my ko-fi page.