What are the types of screws?

Screws can be seen everywhere in life, but we don't know much about its specific function. So what are screws used for? The main function of the screw is to connect two workpieces together for fastening. The screw can also play a role in motion transmission. Screws with different functions have different types, so let’s take a look at the types and functions of screws.

1. Divided By Name

Screws can be divided into Machine screws, self-tapping screws, self-drilling screws, chipboard screws, drywall screws, wood screws, hex wood screws, combination screws, micro screws, furniture screws, electronic screws

2. Divided By Head

Screws can be divided into hexagon head, hexagon head with flange, square head, T head, hammer head, mushroom head, truss head, cheese head, round head, pan head, countersunk head（flat head）, raised countersunk head screws.

3.Divided By Drive

Screws can be divided into Philip, Pozi, Slotted, Allen, Combination, Torx, Square, Hex socket screws.

Screws have important tasks in industry. As long as industry exists on the earth, the function of screws will always be important. Screws have been a common invention in people's production and life for thousands of years. In terms of application fields, they are the first invention of mankind. 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; transportation equipment, airplanes, trams, automobiles, etc. use both large and small screws.