SJ 2502 - 1984 十字槽盘头普通螺纹自攻螺钉
See all versions and complete specifications: Cross Recessed Pan Head Tapping Screws — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST2 | 0.45 | 2.7 | 1 | 2.1 | 1.96 | 0.9 | 5 | 1.63 | 1.8 | 4.7 | 1.80 |
| ST3 | 0.8 | 4.9 | 2 | 3.7 | 3.52 | 1.6 | 9.5 | 3.48 | 3.2 | 9.14 | 3.78 |
| ST2.5 | 0.6 | 3.9 | 2 | 2.6 | 2.46 | 1.2 | 7 | 2.37 | 2.4 | 6.64 | 2.57 |
| (ST3.5) | 1 | 6.9 | 3 | 4.6 | 4.3 |
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.
| 2 |
| 12 |
| 4.17 |
| 4.0 |
| 11.57 |
| 4.50 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.