Yamaha DTXpress/DTXplorer/DTXtreme

Hi ppl

Where's the best place to get new screws for the DTXpress frame?

Last year we played in a barn with an unfinished concrete floor. The
more I brushed the floor, the dustier it got, so we had to play in
concrete dust. After that, none of the screws felt right, and now I've
overtightened one and threaded it.

Thomann seem a little slow in answering, but maybe that's the only
option, but if there's another, or if anyone has part numbers, that
would be great.

Cheers
J