Slotted Countersunk Head Screws - Table JA.4
JIS B 1101 (JA4) - 2017 开槽沉头螺钉 附表JA.4
See all versions and complete specifications: Slotted Countersunk Head Screws - Table JA.4 — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M1 | 0.25 | 0.12 | 0.25 | 0.7 | 0.42 | 2.4 | 2.1 | 0.3 | 0.35 | 0.8 | 0.32 |
| M2 | 0.8 | 0.5 | 0.9 | 2.5 | 1.4 | 10 | 9.4 | 1.1 | 1.3 | 2.8 | 1.2 |
| M1.2 | 0.35 | 0.16 | 0.3 | 0.85 | 0.55 | 3.2 | 2.8 | 0.35 | 0.4 | 0.95 | 0.4 |
| M1.6 | 0.6 | 0.35 | 0.65 | 1.7 | 1.15 |
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.
| 7 |
| 6.5 |
| 0.8 |
| 0.95 |
| 2 |
| 1 |
| M2.5 | 1.25 | 0.8 | 1.5 | 4 | 1.8 | 16 | 15.2 | 1.8 | 2.1 | 4.4 | 1.6 |
| (M1.4) | 0.45 | 0.25 | 0.5 | 1.25 | 0.95 | 5 | 4.6 | 0.6 | 0.7 | 1.45 | 0.8 |
© 2026 Ningbo Ruixi Metal Surface Technology Co., Ltd.. All rights reserved.