Differently from most of the measuring tool, which account for all the thread diameters and lengths, these designs are only useful for one thread dimension and specific lengths.

Since M3 and M4 are by far the most used, I decided to design a measuring tool for those two thread dimensions. The design contains all the most widespread screw lengths.

I personally prefer to use these two compared to the all-in-one, since it makes the sorting much faster.

You can also put a pause at layer and change filament to get the numbers in a different color.