yes the countersunk style flat heads aren't right, they are a "panhead" style odd size, and the originals are clutch screws [which doesn't matter really], but keep in mind that the arms [rollers] don't travel the full width of the track, and you install those screws after the track is put in place on the regulator, so they can stick up without interfering ... I'll look at the project pile tomorrow and see if they're handy to get a size for you
Bill
