Machine screws come in a variety of head types,, and thread configurations. Whether you need pan head screwsorflat head screws, fine thread or course thread, Monroe Aerospace has the machine screwsfor your project.Monroe Aerospace is a stocking distributor of Aerospace and Mil-Spec hardware. We have an extensive inventory of MS screws. Every part that we sell is in Factory new (FN) condition and we provide our company’s certificate of conformance for all parts on every order. See below for our products.