Roland D-20 Screw Sizes

For some reason I think I misplaced the screws that attach the floppy drive to the big chassis that goes between it and the outer shell of the synth. Does anyone know what size and type screw these are ?

Other questions about screws/fasteners are welcome also to this thread.

The service manual provides the screw types in the diagram.

I’m trying to get screws for my Roland MC-303 Groovebox. They have similar names, such as “3x6mm Binding Head B-Tight ZC”. My local hardware store has 3mm (M3) diameter screws, but not necessarily 6mm long… and the thread doesn’t seem to match even when I find online. My screw I brought for reference looked like it has 1.25mm pitch, but everything I find even online is 0.5mm.