China Hex Bolt Exporter Introduces The Function Of The Screw Cap 2022-4-18 China Hex Bolt Exporter introduces the functional requirements of screws, bolts and nuts (nuts): 1. Screw: a tool that uses the physical and mathematical principles of the circular rotation and friction of the object to fasten the parts of the object step by step. 2. Bolts: Mechanical parts, cylindrical threaded fasteners with nuts. 3. Nut (nut): Nut is a part that tightly connects mechanical equipment. Through the inner thread, nuts and bolts of the same specification can be connected together. Through the above introduction, 2H Heavy Hex Nuts Suppliers hopes that you can simply refer to the content of this article in future use. https://www.ydfastener.com/