Cross Recessed Countersunk Head Screws
GB 819 - 1985 十字槽沉头螺钉
See all versions and complete specifications: Cross Recessed Countersunk Head Screws — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 819.1 |
| NF | NF E 25-119-1 |
| DIN | DIN EN ISO 7046-1 |
| ISO | ISO 7046-1 |
| UNI | UNI 7688 |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M2 | 0.5 | 0.8 | 3.2 | 5.2 | 1.65 | 1 | 6.3 | 1 | 3.2 | 5.5 | 1.25 |
| M3 | 1.25 | 2 | 9 | 15.4 | 4.65 | 2.5 | 17.3 | 4 |
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.
| 8.9 |
| 15.8 |
| 3.2 |
| M4 | 1.5 | 2.5 | 10 | 17.8 | 5 | 3 | 20 | 4 | 10 | 18.3 | 3.8 |
| M1.6 | 0.4 | 0.5 | 2 | 3.5 | 1.2 | 0.8 | 4.4 | 0 | 1.9 | 3.8 | 1 |
| M2.5 | 0.8 | 1.3 | 5.1 | 8.9 | 2.7 | 1.6 | 10.4 | 2 | 5.2 | 9.3 | 2 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.