Dimensions Of Metric Socket Head Cap Screws
ASME/ANSI B 18.3.1M - 1986 (R2008) 米制内六角圆柱头螺钉 [Table 1] (ASTM A574M / F837M / A1-70)
See all versions and complete specifications: Dimensions Of Metric Socket Head Cap Screws — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| AS | AS 1420 |
| GB | GB /T 70.1 |
| NF | NF E 25-125 |
| DIN | DIN EN ISO 4762 |
| ISO | ISO 4762 |
| UNI | UNI 5931 |
| ANSI | ANSI/ASME B 18.3.1M |
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M2 | 0.5 | 1.02 | 1.5 | 5.32 | 3 | 3 | 2.86 | 0.3 | 2.5 | 5.5 | 2.89 |
| M3 | 1.25 | 3.2 | 4 | 12.7 | 8 | 8 | 7.78 | 0.8 |
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.
| 6 |
| 13 |
| 7.83 |
| M4 | 1.5 | 4 | 5 | 15.67 | 10 | 10 | 9.78 | 1 | 8 | 16 | 9.81 |
| M1.6 | 0.4 | 0.68 | 1 | 3.65 | 2 | 2 | 1.86 | 0.2 | 1.5 | 3.8 | 1.91 |
| M2.5 | 0.8 | 1.9 | 2.5 | 8.27 | 5 | 5 | 4.82 | 0.5 | 4 | 8.5 | 4.86 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.