Hex Bolt Manufacturers introduces what types of bolts are generally divided into?

1. According to the shape of the head
There are also many head shapes of bolts, such as hexagonal head, square head, round head and countersunk head, etc. Among them, hexagonal head is more common.

2. According to the connection force method
There are different bolts for different connection force methods, which are mainly divided into ordinary bolts and bolts for reaming holes. Specifications of bolts, bolts, nuts, threads

3. According to the thread type
There are two main types of bolt threads: coarse thread and fine thread.

4. According to the production accuracy
Bolts with different production precision are mainly divided into three grades: A, B, and C. A and B are refined bolts, which are mainly used for lathe processing. The general performance grade is 8.8. While C is a rough bolt, the performance grade is only 4.8. for temporary fixation.

5. According to the performance level
There are eight bolt performance grades, namely 3.6, 4.8, 5.6, 5.8, 8.8, 9.8, 10.9 and 12.9. Above grade 8.8 are high-strength bolts of low carbon alloy steel, while below grade 8.8 are ordinary bolts.

Through the above introduction, Bolts Manufacturers hopes that you can simply refer to the content of this article in future use.