Korg Poly800/EX800 Users

hey everyone,

i'm about to write a second (probably longer) post, but i thought 
this question deserved one all to itself.  can anyone give me any 
information about what *kind* of screws/bolts/whatever are usually 
found holding the keyboard unit to the base of the poly-800?  for 
some reason, mine only came with one - not a big deal, but i'd like 
to find some more if it's in any way possible...  the poly creaks 
when i pick it up or move it, and just feels a little flimsy.  extra-
flimsy, i mean. :]  i'm just trying to make it as stable as possible.

so we all know, the bolt i'm talking about has a very fine thread, a 
broad rounded top, and takes a philips-head screwdriver.  it's not 
pointed at the tip, just flat.  it's dark in colour, also, as are all 
the screws.  replacements wouldn't need to be the same colour.

i've gone to a local hardware-retail warehouse to look for 
replacements, but they didn't have anything to match the one i took 
with me and didn't know anywhere else that might be able to.  it will 
make things a lot easier for me if i know how to describe what i'm 
looking for to a hardware store/supplier.  can anybody with knowledge 
of these things please tell me exactly what i should be asking for, 
and where (especially here in australia) a good place to get them 
from might be?

i'd really appreciate any help.

thanks,
-gareth