Phillips, Flat Undercut, Machine Screws. Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Flat undercut heads are used when a flat head is desired on shorter length screws.
Phillips Flat Undercut Head Machine Screws Click on a model number to view additional specifications, photo galleries and accessories. Click on an underlined title to change sort order.