Cross Recessed Cheese Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 5]
JIS B 1122 (AAT5) - 1996 十字槽矮圆柱头自攻钉 - 螺纹型式：Class 1~Class 4 [附表5]
See all versions and complete specifications: Cross Recessed Cheese Head Tapping Screws - Threaded Portion are of Class 1 to 4 [Annex Attached Table 5] — Full Specification Page
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 5.3 | 0.95 | 0.4 | 0.3 | 4.9 | 1 | 2.5 | 1.32 | 0.6 | 1 |
| 3 | 9.3 | 1.99 | 0.75 | 0.5 | 8.7 | 1.9 | 4.7 | 2.53 | 1.05 | 2 |
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| 2.5 | 7.3 | 1.30 | 0.55 | 0.4 | 6.8 | 1.5 | 4.0 | 1.83 | 0.85 | 2 |
| 3.5 | 12.4 | 2.31 | 1.15 | 0.7 | 11.7 | 2.4 | 6.3 | 2.86 | 1.45 | 3 |
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