Hexagon Slotted and Castle Nuts, Style 1
Q 381B 1型六角开槽螺母 细牙普通螺纹
See all versions and complete specifications: Hexagon Slotted and Castle Nuts, Style 1 — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M8 | 1 | 10 | 10.8 | 15.73 | 3.4 | 12.4 | 11.97 | 8.4 | 8.04 | 16 | 2.8 |
| M12 | 1.5 | 18 | 19.5 | 26.16 | 5.7 | 21.8 | 20.96 | 15.8 | 15.1 | 27 | 4.5 |
| M16 | 2 | 27 | 29.1 | 40 | 6.7 | 31.8 | 30.8 | 23.8 | 22.96 | 41 | 5.5 |
| (M10) | 1.5 | 14 | 15.1 | 20.67 | 4.25 |
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.
| 17.8 |
| 17.37 |
| 12.8 |
| 12.37 |
| 21 |
| 3.5 |
| (M14) | 1.5 | 22 | 23.7 | 33 | 6.7 | 27.4 | 26.56 | 19.4 | 18.56 | 34 | 5.5 |
| (M18) | 2 | 33 | 35.6 | 49 | 8.5 | 37.7 | 36.7 | 28.7 | 27.86 | 50 | 7 |
| (M20) | 3 | 36 | 38.9 | 53.8 | 8.5 | 40 | 39 | 31 | 30 | 55 | 7 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.