I was repairing Sony headphones when I saw some screws were missing. As all screws were the same, I took off a non missing screw to see what size and thread it was.
I measured the outer diameter and it was 2mm. I measured the pitch and it was around 0.6mm. What standard is that? M2 would have 3 times smaller of a pitch. What standard is typically used in electronic devices? Where can I find this type of screw?