Industrial clamps are fixturing components used to hold and position work on machine tables. They are used during assembly, forming, welding and machining.
Screws are fasteners that consist of a threaded shaft at one end and, typically, a head at the other. They are inserted into solid materials and secured via rotation.
Tool holders (toolholders) are the physical interface between tooling and the machine tool. They vary in terms of machine-mount styles and are designed to perform specific applications.