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The main types and characteristics of hardware fasteners

2020-08-20

Hardware fasteners are the general term for a type of mechanical parts used when two or more parts are fastened together into a whole. Hardware fasteners usually mainly include the following 5 types of parts:
A. Stud: There is no head, only a type of fastener with threads on both ends.
B. Screws: It is also a type of fasteners composed of two parts, a head and a screw, which can be divided into three categories according to their purposes: machine screws, set screws and special purpose screws.
C. Bolt: A type of fastener consisting of two parts, a head and a screw, which needs to be matched with a nut to fasten and connect two parts with through holes.
d. Nut: with internal threaded hole, the shape is generally flat hexagonal column, there are also flat square column or flat cylinder, with bolts, studs or machine screws, used to fasten the connection of two parts, It becomes a whole.
E. Self-tapping screw: But the thread on the screw is a special self-tapping screw thread.
Hardware fasteners have the following characteristics:
A. It is convenient and quick to use, beautiful and efficient, and the product quality is excellent, in line with national standards.
B. It has a wide range of uses and is suitable for the fastening fields of various metal sheets, pipes and other manufacturing industries.
C, strong abrasion resistance, stable product quality.
Which areas need to use extension screws?
A type of fasteners, which are mainly composed of a head and a screw, have the following advantages:
A. The extension screw can be removed or re-tightened at will without sacrificing its efficiency. It also provides greater strength than nails and can be used repeatedly.
B. The structure of the extension screw is simple, easy to use, easy to process, and avoids the interference between the limit screw and the product surface.
C. The stroke of the pressing plate is enlarged, the thickness of the pressing plate is reduced, and the material is saved.
D. The more protruding top also prevents the screw from drilling too deep to penetrate the material, and increases the pressure of the screw on the material.
    E. This product is widely used in construction, communications, electric power, electronics, chemicals, machinery and other fields.

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