Hexagon Head Tapping Screws (Type C and Type F)
JIS B 1123 (AT1) - 1996 六角头自攻螺钉（C型和F型）
See all versions and complete specifications: Hexagon Head Tapping Screws (Type C and Type F) — Full Specification Page
| Size | P | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|
| ST2.2 | 1.1 | 5.4 | 2.3 | 1.1 | 5 | 2.6 | 2.1 | 4.82 | 2 |
| ST2.9 | 1.4 | 7.59 | 3 | 1.4 | 7 | 3.7 | 2.8 | 6.78 | 2.6 |
| ST3.5 | 1.8 | 8.71 | 4.1 | 1.8 | 8 | 5 | 3.6 | 7.78 | 3.6 |
| ST4.2 | 2.1 | 14.26 | 6 | 2.1 | 13 | 7.5 | 4.2 | 12.73 | 5.2 |
| ST4.8 |
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| 2.1 |
| 17.62 |
| 7.5 |
| 2.1 |
| 16 |
| 8 |
| 4.2 |
| 15.73 |
| 6.5 |
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