M3 Nuts along with Length 6 mm, 8 mm, and 16 mm. You may need to experiment to find which hex-head works best due to tolerances.

In order for these to work immediately without any resizing, you must use the 2 mm nozzle with smallest layer height. I also used bambu basic filament. Lastly, use smooth plate to ensure maximal adhesion as textured PEI plate isn't sticky enough to avoid the screws falling over.