We failed a commercial inspection this morning for using only 2 screws on side bracket mounted 4" square boxes. 8 offices, 2 breakrooms, 3bathrooms. lab, production area, security room, all mounted by two screws directly to the stud. They are 1 1/4" screws and hold the box very securly. Is this inspector making up codes?? He says they have to have 3 screws on each box??