Steel Pan Head Machine Screw, Zinc Plated, Meets ASME B18.6.3, #1 Phillips Drive, #3-48 Thread Size, 1" Length, Fully Threaded, Imported (Pack of 100)

Machine screws are threaded fasteners that are typically used with nuts or drilled and tapped (threaded) holes. They are available with a variety of head shapes, which determine how the screw interacts with the mating surface, and drive styles, which determine the type of driver required to install and remove the screw.