I got a Corsair 5000D airflow case from a friend for free but it is missing all the four screws that hold the side panels on the back. All the screws I can find on the internet are the short version that don’t have enough reach.
This screw is from my own PC case.
Edit: image with the short version that I was talking about
The term to search for is “captive thumbscrew”. The captive part being the unthreaded portion which allows the screw to rotate freely in the panel hole. These will tend to be longer than normal thumbscrews you account for the unthreaded part.
If you live in Europe I could probably send you some.
10 x Computer Case Thumbscrews (6-32 Thread) PC Computer Case Fastener Thumb Screws,for Cover/Power Supply/PCI Slots/Hard Drives https://a.co/d/hm14iKl
Correct answer. The typical coarse thread computer screw as used on full size hard drives as well as most case panels is a #6-32 screw. They should all be interchangeable.
The fine thread screws used on optical drives and so forth are metric M3x0.5.