Hexagon Washer Head Drilling Screws
JIS B 1124 (T1) - 2003 六角头带介（华司）钻尾自攻钉
See all versions and complete specifications: Hexagon Washer Head Drilling Screws — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST2.9 | 1.3 | 1.5 | 3 | 0.6 | 5.5 | 1.3 | 8.3 | 5.96 | 3.4 | 7.6 | 5.32 |
| ST3.5 | 1.6 | 2.2 | 3.8 | 0.9 | 8 | 1.6 | 10.5 | 8.71 | 4.3 | 9.8 | 7.78 |
| ST4.2 | 1.8 | 3.1 | 5.3 | 1 | 10 | 1.8 | 13.5 | 10.95 | 5.9 | 12.2 | 9.78 |
| ST4.8 | 1.8 | 3.1 | 6.0 | 1.0 | 10 |
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| 1.8 |
| 13.5 |
| 10.95 |
| 6.6 |
| 12.2 |
| 9.78 |
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