5/16-18 X 7/8 Phillips Pan Head Machine Screw CH SC Z/P PKG. 100 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.

Machine Screws are designed to go through a hole or nut that is pre-tapped to form a mating thread for that screw. Flat head screws are used when protrusion of the fastener above the mating surface is unacceptable.

M8-1.25 X 40 Phillips Pan Head Machine Screw 7985A PKG. 100 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.