Metric Slotted Pan Head Screw and Spring Washer Assemblies-SEMS (Machine Screw Thread Diameter)
ASME/ANSI B 18.13.1M - 2011 米制开槽盘头螺钉和弹垫组合 SEMS[Table 1]
See all versions and complete specifications: Metric Slotted Pan Head Screw and Spring Washer Assemblies-SEMS (Machine Screw Thread Diameter) — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.7 | 1.5 | 2.2 | 7 | 6.74 | 3.76 | 3.6 | 7.6 | 2.4 | 1.19 | 8 |
| M4 | 1.25 | 2.3 | 4.5 | 14.29 | 13.96 | 7.36 | 5.75 | 15.5 | 4.8 | 2.46 | 16 |
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.
| M2.5 |
| 0.5 |
| 1 |
| 1.6 |
| 5.73 |
| 5.49 |
| 2.84 |
| 2.69 |
| 5.3 |
| 1.8 |
| 1.02 |
| 5.6 |
| M3.5 | 1 | 1.9 | 3.3 | 11.3 | 11.02 | 5.62 | 5.44 | 11.5 | 3.6 | 1.96 | 12 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.