The M4 screws (which includes a nut) were CADed with the intent of being able to use them in low-stress situations. The screws should be similar to the goBILDA M4 screws, which you can use interchangeably with these 3D-printed screws, as shown in a picture above. 

Print Instructions:

I printed the screws on a Prusa MK3S+, which had a 0.25mm nozzle, using PLA. I used 100% rectangle infill, random seam position, a layer height of 0.1mm, and two perimeters. The print speed was 10-40mm/s. 

Note: all the print files shown in the pictures were printed on an MK3S+ if you have a Bambu printer please use your own print settings as the 

MK3S+  does not compare.

If the M4 screws do not properly work, please let me know by leaving a comment or make. 

Happy Printing!