assembly screws

[davideingSp]

hello to everyone, I am composing a fairly elaborate assembly and now I am facing a problem:

I have a diameter hole 3,2mm and depth 12mm

I have a library of screws already ready in 3d designed by my prof. according to the directives one, the problem is that I do not find a screw with such diameter, according to you how can I proceed? (I also checked on some online library)

 

[calacc]

m4 screw?

 

[davide_pontini]

if the hole is smooth without the cosmetics that would indicate what thread it is then you are seeing the pre-hole for mapping a m4. but I doubt that you have set up this way, unless the part in question has been imported and therefore has not maintained the characteristics of the source software. in such case really the hole you see is the pre-hole for a threaded hole of m4.
The answer is m4

 

[320i S]

if the material allows it, self-tapping screw.