I did the famous power wire shielding DIY project to eliminate static from my Treo 600...

http://www.ktmonline.com.br/treo/treo600-buzzing.pdf

However, when I was screwing the screws back I over-torqued one of them and the head snapped off. The screws are tiny Torx T6 screws.

Where can I find these particular screws? I looked at my Siemens S55 Torx T5 screws and the thread is different so it didn't work in the screw holes.