track saw speed square bracket for milwaukee / festool / makita track saw guides

This attaches a Swanson Big 12" speed square ($16 @ Menards) to milwaukee/festool/makita type track saw guide rail extrusions. You will need a M5x10mm thumb screw and a matching M5 nut that is 8mm across the flats. This MAY work with 10-32 or 10-24 hardware (untested).