There are two versions here. One is larger and rounded at both ends. One is flat on one end if you want an easier print and for it to sit flush with the instrument.

I've tried 0.1 and 0.2 printing. and both work well.

Anycubic

i3 Mega

No

Yes

0.1

100%

supports might not be needed for the threads, but it can help. I have found I don't need to clean them out as the moment you first use it it takes the supports out.