Cross Recessed Pan Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 1]
JIS B 1122 (AAT1) - 1996 十字槽盘头自攻钉 - 螺纹型式：Class 1~Class 4 [附表1]
See all versions and complete specifications: Cross Recessed Pan Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 1] — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 4.5 | 1.00 | 1.42 | 1.6 | 6 | 4.1 | 1.7 | 1 | 2.6 | 1.8 | 0.8 |
| 3 | 8 | 1.83 | 2.43 | 2.75 | 11 | 7.4 | 2.9 | 2 |
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| 4.6 |
| 3.05 |
| 1.5 |
| 2.5 | 6 | 1.15 | 1.73 | 2.15 | 8 | 5.5 | 2.3 | 2 | 3.9 | 2.45 | 1.1 |
| 3.5 | 10.5 | 2.26 | 2.86 | 3.7 | 14 | 9.8 | 3.9 | 3 | 6.3 | 4.1 | 1.9 |
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