4-40X3/16 Phillips Full contour Truss Machine Screw Fully Threaded 18 8 S/S  Blk Oxide (Pack Qty 7,000) BC-0403MPT188B

Phillips Full contour Truss Machine Screw Fully Threaded 18 8 S/S Blk Oxide

A straight shank fastener with external threads designed to go through a hole or nut that is pre-tapped to form a mating thread for the screw. Machine screws form a fastening superior in strength to spaced thread screws.