Scope of application
China Nut has many names. Everyone may call them different combinations of screws. Some call them screws, some call screws, some call standard parts, and some call fasteners. Although there are so many names, they all mean the same thing. They are all screws. Screws are the general term for fasteners. The principle of the screw is to use the physics and mathematics principle of the oblique circular rotation of the object and the friction force to gradually tighten the utensils.
      Screws are indispensable in daily life and industrial production. Screws are also called the rice of industry. It can be seen that screws are widely used. The scope of application of screws are: electronic products, mechanical products, digital products, electrical equipment, mechanical and electrical products. Screws are also useful in ships, vehicles, water conservancy projects, and even chemical experiments. Anyway, screws are used in many places. Such as precision screws used on digital products. Mini screws used in DVDs, cameras, glasses, watches, electronics, etc.; general screws used in televisions, electrical products, musical instruments, furniture, etc.; large screws and nuts are used in engineering, construction, and bridges; transportation equipment, airplanes, trams, automobiles And so on, use both large and small screws. Screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important.
     There are many types of screws, whether they are very small screws for glasses or large screws for large-scale heavy electrical engineering. The accuracy of screws is usually 6g (level 2, American standard "IFI" is 2A thread), and the rough screw used in construction engineering is 1g.
     The scope of application of screws is so wide, so the screw market must be relatively large, the demand must be relatively huge, and there must be more Bolt Factory production in the screw industry. When purchasing a professional screw manufacturer, they must first understand some professional basic knowledge of screws, such as screw classification standards and American screw specifications.