I made self tapping screws that get tapped by a thread.
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Mayber someone with a better printer than me is so kind to upload a make ;)
I included M4x10, x15 and x20 screws, though other diameters are quickly made by changing x/y scale. I'll add proper, normed models of other sizes later.
The M4 size takes a 3mm Hex key. Mine got stripped pretty quickly tho :/
The author marked this model as their own original creation.