5/16-18 x 2-1/4" Machine Screw - Pan Head - Phillips - Steel - Zinc CR+3 - FT - PKG. 50

5/16-18 x 2-1/4" machine screw - pan head - phillips - steel - zinc cr+3 - ft - pkg. 50 machine screws have a uniform diameter the entire length of the shaft as opposed to tapered screws which have a pointed tip. machine screws are typically used with a threaded hole to secure two parts together. machine screws are fully threaded for use with a nut or in a tapped hole.