chassis bolts and Rubber feet.

[oinkbanana]

man, there's no metric bolts in america. damn.
and all the m6 50mm bolts i'm finding are from Boating websites. really weird.

i wonder how long it'll take 4 bolts to come to canada from the UK.

[MEC]

Keep in mind that even when buying a 6mm Machine Screw there are different thread pitches.
Ex: M.6-0.15 OR M.6-1
The 6 is the diameter of the screw and the other number is the millimeter per thread count.
An auto parts store could probably tell you the exact size of the screw you have and may even have a replacement.
Also, I know "bolt" is the the word everyone uses to describe what you are looking for but "machine screw" is the technical term and will probably produce better results in your searches.

[Holy Schnikes]

I contacted Orange customer support in the US and they sent me a set of bolts and rubber feet a couple years back, have you tried them directly rather than through a dealer? Also, Humbucker Music in Georgia (huge Orange dealer) is located really close to Orange HQ and could maybe get the issue resolved. There's also the Orange forums, some help might be had there.