These fillister head slotted screws have a shiny look and won't rust in damp environments. Made of brass, they're also conductive and nonmagnetic, making them useful for electrical applications. With a deeper drive than others, fillister heads reduce the likelihood that basic slotted drivers slip as you hand-tighten them. Since they also have a narrow diameter, they fit into tight spaces, such as holes tucked away inside machinery.

Length is measured from under the head.