Screw is a popular name for fasteners such as screws. Screw may be a typo of screw. Generally, the name of screws in industry evolved based on the shape of animal screws in nature. So both represent the same item.

Screw is a tool that utilizes the physical and mathematical principles of the object's inclined plane circular rotation and friction to gradually tighten the device. Screws are indispensable industrial necessities in daily life: very small screws used in cameras, glasses, clocks, electronics, etc.; general screws used in televisions, electrical products, musical instruments, furniture, etc.; as for engineering, construction, and bridges, large screws are used Screws and nuts; large and small screws are used in transportation equipment, airplanes, trams, automobiles, etc.