APPLICATIONS A nut is a mechanical fastener with a threaded hole. It is attached to a bolt, screw or stud to provide a clamping force and prevent axial movement. For example, a bolt is inserted through two parts, with aligned holes, and a nut is then screwed onto the bolt. Applications include industrial valves used in petrochemical, oil and gas industries, water and sewage, and for the connection of pipes and flanges, etc.
