But, but, BUT,
you cheated. You used a die. Which begs the question, how do you make the die.
I assume you don't single point a 0.6 mm die. The tool would need to be around 0.3mm wide, no more. So it must be made with a tap.
And then we are right back to where we started,
How do you make a 0.6 mm external thread from scratch? I would guess it would have to be single point threaded like any other unique thread. Except it is more difficult because the tap will need to be at least several times as long as that real short screw you made in the video. So it will need to be supported while threading it. No flexing allowed. Bottom support? Rear support? How? How? HOW?
Thread rolling perhaps? Two rolls with thin supports above and below. That might work.
So lets see that Mr. smartypants!