What is recessed head?

A recessed head refers to a type of screw or bolt head that is designed to sit flush with the surface it is being fastened to. This type of head is often used in applications where a smooth, low-profile finish is desired, as the recessed head helps to prevent the screw or bolt from protruding above the surface. Recessed heads can come in various shapes and sizes, such as flat, oval, or hexagonal, and are typically used with corresponding tools, such as screwdrivers or hex keys, for installation and removal.