Ordinary electromechanical hardware screws are made of low-carbon steel.
Low carbon steel (low carbon steel) is carbon steel with a carbon content of less than 0.25%. Because of its low strength, low hardness and softness, it is also called mild steel. It includes most of ordinary carbon structural steel and some high-quality carbon structural steel, most of which are used for engineering structural parts without heat treatment, and some are used for mechanical parts that require wear resistance after carburization and other heat treatment.
The annealed structure of low carbon steel is ferrite and a small amount of pearlite, its strength and hardness are lower, and its plasticity and toughness are better. Therefore, its cold formability is good, and cold forming can be stopped by methods such as crimping, bending, and stamping. This steel also has good weldability. Low carbon steel with carbon content ranging from 0.10% to 0.30% is easy to withstand various processes such as forging, welding and cutting, and is often used in the manufacture of chains, rivets, bolts, shafts, etc.
Electromechanical hardware screws are tools that apply the physics and mathematics principles of oblique circular rotation and friction of objects to fasten objects and parts step by step. Screws are a common term for fasteners, an everyday spoken word. Screws are indispensable industrial necessities in daily life: extremely small screws used in cameras, glasses, clocks, electronics, etc.; ordinary screws used in televisions, electrical products, musical instruments, furniture, etc.; as for engineering, construction, and bridges, large-scale screws are used. Screws and nuts; transportation equipment, airplanes, trams, cars, etc. are used for both large and small screws. Electromechanical hardware screws have important tasks in industry. As long as there is industry on the earth, the function of screws will always be important. Electromechanical hardware screws are a co-creation in people's consumer life for thousands of years. According to the scope of application, it is the first creation of mankind.