Cross Recessed Truss Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 4]
JIS B 1122 (AAT4) - 1996 十字槽大扁头自攻钉 - 螺纹型式：Class 1~Class 4 [附表4]
See all versions and complete specifications: Cross Recessed Truss Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 4] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 5.7 | 0.95 | 1.32 | 1.4 | 3.7 | 5.3 | 1.5 | 1 | 2.5 | 1.6 | 0.3 |
| 3 | 10.6 | 1.99 | 2.53 | 2.65 | 6.9 | 10 | 2.8 | 2 |
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| 4.7 |
| 2.95 |
| 0.5 |
| 2.5 | 8.1 | 1.3 | 1.83 | 2.05 | 5.4 | 7.6 | 2.2 | 2 | 4.0 | 2.35 | 0.4 |
| 3.5 | 14 | 2.31 | 2.86 | 3.5 | 9.1 | 13.3 | 3.7 | 3 | 6.3 | 3.9 | 0.7 |
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