Studs with a Length of Engagement Equal to About 2.5d
DIN 940 - 2010 双头螺柱b1=2.5d
See all versions and complete specifications: Studs with a Length of Engagement Equal to About 2.5d — Full Specification Page
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M4 | 0.8 | 2 | 16 | 22 | / | / | 5 | 4.82 | 13 | / |
| M5 | 1 | 2.5 | 20 | 26 | / | / | 7 | 6.78 | 18 | / |
| M6 | 1.5 | 3.8 | 26 | 32 | 1.25 | / | 10 | 9.78 | 25 | 45 |
| M8 | 2.5 | 6.3 | 42 | 48 | 1.5 | / | 18 | 17.73 | 45 |
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.
| 61 |
| M10 | 2.5 | 6.3 | 50 | 56 | 1.5 | / | 22 | 21.67 | 55 | 69 |
| M12 | 3 | 7.5 | 54 | 60 | 2 | / | 24 | 23.67 | 60 | 73 |
| (M7) | 2 | 5 | 34 | 40 | 1.5 | / | 14 | 13.73 | 35 | 53 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.