Screws for a Sony Minidisc deck top cover...?

Just bought what looks like a remarkably nice and clean silver Sony MDS-JB930 Minidisc deck for £100 from eBay.

I noticed on the images that there are a couple of screws missing from the case (see attached).

Could be a good thing in that it's been serviced? Could be a bad thing that whoever took the lid off was slapdash and didn't care, lost the screws and that doesn't bode well.

That's the chance you take I guess...

Anyway, for 'completeness' I'd like to replace the screws.

The 'exploded' parts list just gives a part number and a description of 'SCREW (CASE) (UK). It doesn't give details of the type of screw.

Does anyone know what type of screws I need?

Thanks...