Application range of screws

There are many names for screws. Everyone may have different names. Some call them screws, some call them screws, some call them standard parts, and some call them fasteners. Although there are so many names, they all mean the same. They are all screws. Screw is the general term of fastener. The principle of screw is to use the physical and mathematical principles of the oblique circular rotation of the object and the friction force to tighten the tools and parts gradually.
Screws are indispensable in daily life and industrial production and manufacturing, so screws are also known as the rice of industry. The application scope of screws includes: electronic products, mechanical products, digital products, electrical equipment, electromechanical mechanical products. Screws are also useful in ships, vehicles, hydraulic engineering and even chemical experiments.
There are many types of screws, whether they are small screws for glasses or large screws for large heavy electrical engineering. The accuracy of screw is usually 6g (class 2, American specification "IFI" is 2A teeth), and the rough screw used in construction project is 1g.
Screws are widely used, so the screw market is large, resulting in more manufacturers producing screws. When selecting a professional screw manufacturer, the purchaser needs to first understand some professional basic knowledge of screws, such as screw classification standard specification and American screw specification table.