First, the basic structure of the screw
A screw is a universal fastener, which is usually composed of a head, a screw and a variety of threads of different shapes. The screw thread is a geometric structure whose spiral shape enables the screw to fit closely with other objects to achieve the function of fixing and connecting. The head of the screw is usually designed with different shapes in order to adapt to different applications.
Second, the main use of screws
1. Secure the connection
The most basic use of screws is to join objects and hold them tightly together in order to form a strong structure. This type of screw is usually self-tapping or machine threaded, and the corresponding size and length can be selected according to the need.
2. Support device
Screws play a key role in many devices designed to withstand weight, balance stability or provide support. For example, various types of screws such as nails and bolts are often required in brackets, scaffolding, Bridges and building supports to provide support and fixation.
3. Mechanical components
In mechanical manufacturing and engineering design, screws, as an important mechanical component, are widely used in various types of equipment, including engines, transmission systems, machine tools and manufacturing lines. Screws connect and hold the components, thus achieving the correct operation and operation of the mechanical components.
Third, the type of screws
In addition to different uses, there are many different types of screws. Here are some common screw types:
1. Stud type screws
The screw is composed of large thread and small branch thread. It is often used for forced connections, such as automotive pistons and bearings.
2. Machine thread
Refers to a type of thread used to connect machine parts, usually with a small pitch and a high starting point, often used in assembly situations requiring high precision.
3. Wood screws
Due to its good fastness and ease of use, wood screws are usually used to connect wooden objects, such as furniture.
