Fasteners are a class of mechanical components for fastening and are widely used. Fasteners for a wide range of industries, including energy, electronic equipment, equipment, machinery, chemicals, metallurgy, molds, hydraulics and other industries, with a wide range of fasteners on a wide range of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and consumables. It is the most widely used mechanical foundation. It has a variety of specifications, performance and application, standardization, series, but also has a strong versatility. Therefore, certain types of fasteners with existing national standards are also known asStainless steel non-standard screws, or abbreviated as a standard component.
It typically includes the following 12 types of components:
Bolts: A fastener consisting of a head and screws (cylindrical with outer threads) with nuts for fixing two parts with through holes. This type of connection is called a bolt connection. If the nut is screwed from the bolt, two parts can be separated, so the bolt connection is a removable connection.
Stud: A fastener with no head and only threads at both ends. When connected, one end must be screwed into the part with an inner threaded hole, the other end through the part with the through hole, and then tighten the nut, even if two parts are fixed together. This type of connection is called a stud connection and is also a removable connection. Mainly used for one of the connecting parts. thickness, the need for a compact structure, or due to frequent disassembly, it is not suitable for bolted connections.
Screws: A fastener that is also made up of two parts: the head and the screws. According to the use can be divided into three categories:Electromechanical hardware Screws, fixing screws and special screws. Machine screws are mainly used for tight threaded parts and tight connections to components with through holes. No nut mounting required (This type of connection is called a screw connection and is a removable connection; it is equipped with a nut for a strong connection between two parts with through holes.) The fixing screws are mainly used to secure the relative position between the two parts. Special screws such as ring bolts are used to lift parts.
Nut: With inner threaded hole, the shape is generally flat hexagonal column shape, also has flat square or flat cylindrical shape, with bolts, stud or machine screws, used to fasten the two parts of the connection, so that it becomes one. Self-tapping screws: similar to machine screws, but the threads on the screws are dedicated self-tapping screws. It is used to secure and connect two thin metal components so that they become a whole. These parts need to be pre-made into small holes. Due to its high hardness, the screws can be screwed directly into the hole of the assembly, so the component responds to the internal thread
Wood screws: Also similar to mechanical screws, but the thread on the screws is a special wooden thread that can be screwed directly into a wooden part (or part), used for metal (or non-metallic) parts with through holes. Wooden parts are fastened together. This connection is also a removable connection.
Washer: A flat-shaped fastener. Placement between the support surface of the bolt or nut of the bolt or nut and the surface of the connecting part, which increases the contact surface area of the connecting part, reduces the pressure per unit area and protects the surface of the connecting part from damage; another type of elastic washer, which also prevents the nut from loosening.
Related Industry Knowledge
- Hardware fastener manufacturers of a fastener screw is good or bad, providing more than just fastening
- The maintenance of hardware furniture screws and the role that can not be ignored
- How to detect car special screws
- Summer Palace method of hardware furniture screws
- Those you don't know. Cleaning knowledge and good quality of high strength metal casing
- Development of hardware nut manufacturers in hardware industry in China
- How to clean car special screws
- What is the national standard of hardware fastener manufacturers?
- What are the advantages of stainless steel non-standard screws and combination screws
- General hardware screws with what material than the production?