The following is a detailed summary of the main types of bolts and their characteristics and uses:
1. Hex head bolts
Features: The head is hexagonal, designed to use a wrench to rotate, easy to tighten and disassemble, not easy to slip Angle.
Usage: Often used in machinery, with the advantages of easy fastening and disassembly.
2. Stud
Features: Both ends are threaded, one end is screwed into the connected part, the other end passes through the through hole on the other connected part, and then tighten with a nut.
Application: Suitable for connecting thick plates or occasions where hex bolts cannot be used to connect, such as concrete roof truss, roof beam hanging monorail beam hanging components.
3. Hex socket bolt with cylindrical head
Features: The head is cylindrical, the surface knurled with hexagonal countersunk hole, the need to use a hex wrench when tightening.
Usage: It is often used for occasions where the bolt head is not exposed or the structure is compact without leaving wrench space.
4. T-slot bolts
Features: The head is similar to the square head bolt, but the chamfering method is different, which is easy to load from the end of the T-slot.
Use: With the mechanical T-slot used for the connection of specific structures.
5. Anchor bolts
Features: The J-shaped and L-shaped end is buried in concrete.
Application: Used for the installation of mechanical components on concrete foundation.
6. Butterfly bolt
Features: Special head shape, hand to tighten, grade, shape and other provisions are not too strict.
Application: Suitable for occasions requiring manual tightening.
7. Ring bolts
Features: Bolt head has eyes, used for wire rope or hanging hook.
Usage: Used for lifting and hanging heavy objects.
8. Countersunk bolts
Features: Small head, can be embedded in the surface of the connected parts, some with tenons or grooves.
Application: It is suitable for occasions where the head is not exposed to the surface and the force is not large.
9. Half round head square neck bolt
Features: The head and neck are square, embedded in the groove of the connected part, reducing the height of the protruding surface.
Application: Suitable for occasions where the force is not large and the head height is limited.
10. Square head bolts
Features: The head is quadrangular.
Application: Suitable for places where there is no requirement for mechanical properties, less used in the machinery industry.
11. Prestressed bolts
Features: By applying stress in advance to improve the stability of the structure, with high strength, high stability and other characteristics.
Uses: Widely used in bridge, construction, machinery and other fields, used to connect structural parts, improve the bearing capacity and stability of the structure.
12. Bell cap screws
Features: Fine thread design, made of metal material, with high hardness and wear resistance.
Usage: Used for fixing bell cover and other components in precision equipment such as clocks and clocks to ensure equipment stability and accuracy.
