Hexagon Bolts with Wire Hole on Head - Product Grade A and B
GB 32.1 - 1988 六角头头部带孔螺栓 A和B级
See all versions and complete specifications: Hexagon Bolts with Wire Hole on Head - Product Grade A and B — Full Specification Page
| Size | P | k_max | s_max | s_min | k_nominal |
|---|---|---|---|---|---|
| M6 | 1.25 | 2.6 | 2 | 2 | 2.25 |
| M8 | 1.75 | 3.7 | 2 | 2 | 2.25 |
| M10 | 2 | 5 | 3 | 3 | 3.25 |
| M12 | 2.5 | 6.2 | 3 | 3 | 3.25 |
| M16 | 3.5 | 9.3 | 3 | 3 | 3.25 |
| M20 | 5 | 15 | 4 | 4 | 4.3 |
| (M14) | 3 | 7.5 |
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.
| 3 |
| 3 |
| 3.25 |
| (M18) | 4.5 | 13 | 4 | 4 | 4.3 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.