You find my answers written inline.

Dieter Doepfer

> Okay, sounds good. The bag of screws contains I think 4 small screws,
> they are the same threading as the tiny nuts, and the power supply.
> I'm guessing those 4 screws are to mount the power supply.

Yes

> In addition to that, there are larger screws, they look to be close to
> the same size that you use to screw a horizontal rackmount device to a
> standard vertical rack. I'm guessing these are the M5 screws you're
> referring to, that can be used to screw into the ends of the rails
> They're not self-tapping though, they're just machine bolts.

The manufacturer proMa calls them "selbstschneidende Schrauben M5X20" and
that's in translation "self-tapping srew M5X20"

> Also, like I pointed out before, there are tiny evenly-spaced holes all

down

> the rail, those can just be ignored

I don't know exactly what you mean.