Does anyone know if you can get guide rail connector screws? I tried the local specialty hardware shop and they only had allen setscrews with a cutting end (would penetrate guide rail). The stock ones are flat bottomed and slotted. I emailed Festool and never heard a thing. These are the screws that lock the guide rails together (Guide Rail Connector is Festool Product No. 482107). Any info would be great! I picked up a used guide rail and they included a guide rail connector but was missing two of the four screws.