A Hexagonal Nut is a nut with six corners, usually used with bolts or screws to fasten mechanical parts or structural parts. It has a regular hexagonal shape with internal threads. It is screwed with bolts or screws with external threads to generate axial tension, thereby tightly connecting two or more parts together. The six corners of the hexagonal nut are convenient for tightening or loosening with tools such as wrenches, and are widely used in many fields such as machinery manufacturing, automobile industry,
construction engineering, furniture manufacturing, etc.