Common standards for hexagonal flange bolts include GB5787 and GB5789. The following are examples of some specifications and dimensions (in millimeters) in the GB5789 Grade B standard for hexagonal flange bolts:
|Thread specification d | P pitch | b | L ≤ 125 | 125 ＜ L ≤ 200 | L ＞ 200 | c minimum | da A maximum | B maximum | dc maximum | ds maximum | minimum du | maximum dw | minimum e | maximum f | k maximum | k1 minimum | r1 minimum | r2 maximum | r3 minimum | r4 reference | s maximum | minimum t|
| M5 | 0.8 | 16 | / | / | / | 1 | 5.7 | 6.2 | 11.8 | 4.82 | 5.5 | 9.8 | 1.4 | 5.4 | 0.25 | 0.3 | 0.1 | 3 | 0.15 | 0.05 |
| M6 | 1 | 18 | / | / | / | 1.1 | 6.8 | 7.4 | 12.2 | 5.82 | 6.6 | 10.8 | 2 | 6.6 | 0.4 | 0.4 | 0.1 | 3.4 | 0.2 | 0.05 |
| M8 | 1.25 | 22 | 28 | 32 | 36 | 1.2 | 9.2 | 10 | 15.8 | 7.78 | 9 | 14.08 | 2 | 8.1 | 0.4 | 0.5 | 0.15 | 4.3 | 0.25 | 0.1 |
| M10 | 1.5 | 26 | 32 | 36 | 40 | 1.5 | 11.2 | 12.6 | 19.6 | 9.78 | 11 | 16.32 | 3 | 9.2 | 0.4 | 0.6 | 0.2 | 4.3 | 0.3 | 0.15 |
| M12 | 1.75 | 30 | 36 | 40 | 44 | 1.8 | 13.7 | 15.2 | 23.8 | 11.73 | 13.5 | 19.68 | 3 | 10.4 | 0.6 | 0.7 | 0.25 | 6.4 | 0.35 | 0.15 |
If you need to learn more detailed standard content or other related information, you can refer to the corresponding standard documents or consult professionals. In addition, there are various non-standard hexagonal flange bolts on the market that can be customized according to specific needs. When selecting and using hexagonal flange bolts, factors such as performance level, size specifications, and surface treatment need to be considered to ensure the reliability and safety of the connection.
Post time: Jul-12-2024