Standard assembly fastener screws

Standard parts refer to common parts (components) produced by professional factories that have been completely standardized in structure, size, pattern and marking, such as threaded parts, keys, pins, rolling bearings, etc. Broadly speaking, it includes standardized fasteners, connectors, transmission parts, seals, hydraulic components, pneumatic components, bearings, springs and other mechanical parts.

Fasteners, also known as standard parts in the market, are a kind of mechanical parts used when two or more parts (or components) are firmly connected into a whole. It is characterized by a wide variety of specifications, different functions and uses, and a high degree of standardization, serialization and generalization. Fasteners are the most widely used mechanical foundation parts, and there is a great demand.

Screw is a general term for fasteners. The specifications of coarse threads are indicated by letters "M" and "Nominal Diameter", while the specifications of fine threads are indicated by letters "M" and "Nominal Diameter x Pitch", where the dimension unit "mm" or: mm: need not be specified. When the thread is left-handed, the letter "LH" should be added after the specification.

The standard parts produced by Shantou Hegu Hardware Factory will definitely satisfy you. Last February, 65438+, a friend ordered 65438+ ten thousand pieces of solid parts, saying that he would continue to cooperate with this hardware factory next time.