Hexagon Head Bolts
GB 30 - 1976 六角头螺栓
See all versions and complete specifications: Hexagon Head Bolts — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 5785 |
| DIN | DIN EN ISO 8765 |
| ISO | ISO 8765 |
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| M3 | 0.7 | 7 | 6.8 | 2.8 | 3 | 0.3 | 2.6 | 8.1 |
| M4 | 1 | 10 | 9.8 | 4 | 4.24 | 0.4 | 3.76 | 11.5 |
| M5 | 1.5 | 17 | 16.76 | 7 | 7.29 |
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
| 0.4 |
| 6.71 |
| 19.6 |
| M6 | 2 | 22 | 21.72 | 9 | 9.29 | 0.6 | 8.71 | 25.4 |
| M8 | 2 | 24 | 23.72 | 10 | 10.29 | 0.6 | 9.71 | 27.7 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.