By the way, your computer maker should be able to tell you exactly what screws and sizes they use in any given model.  If they will supply you with the service manual (typically in PDF format) for it the fasteners should be presented for each part like the case, motherboard, screen, etc.

--

Brian - Windows 10 Pro, 64-Bit, Version 2004, Build 19041  

Always remember that computers are just glorified light bulbs - they rarely fail in continuous use and usually go pop when turned off and on.

        ~ Technician with the username Computer Bloke, on Technibble.com