Chosen Solution
Doing a housing swap and stripped 2 screws (managed to get them) that i need to replace. I have a spare set of iphone 8 plus screws, i just need to figure out what size they are. i do not have calipers or anything to figure out size with, just my eyes.
It’s hard to know exactly how long the screws are without anything to measure them with. What I would do is to take the stripped screw and compare it to the other screws, start by removing the ones that are obvious, then removing by length etc. and then you should end up with a screw of the right size. Hope this helped and good luck! :D