Slotted Countersunk Head Tapping Screws
NF E 25-660 - 1994 开槽沉头自攻螺钉
See all versions and complete specifications: Slotted Countersunk Head Tapping Screws — Full Specification Page
| Size | P | k_max | k_min | s_max | s_min | ds_max | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|
| ST2.2 | 1.1 | 0.86 | 1 | 5.5 | 5.2 | 0.85 | 1.7 | 0.6 |
| ST2.9 | 1.4 | 1.26 | 1.51 | 8.4 | 8 | 1.3 | 2.6 | 1 |
| ST3.5 | 1.8 | 1.66 | 1.91 | 10.3 | 9.9 | 1.5 | 3 | 1.1 |
| ST4.2 | 2.1 | 2.06 | 2.31 | 15.8 | 15.4 | 2.3 | 4.65 | 1.8 |
| ST4.8 | 2.1 | 2.56 | 2.81 |
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.
| 18.3 |
| 17.8 |
| 2.6 |
| 5.25 |
| 2 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.