Slotted Hex Head Self-drilling Tapping Screws with Collar
DIN 7504 (L) - 1982 开槽六角带介（华司）钻尾自攻钉
See all versions and complete specifications: Slotted Hex Head Self-drilling Tapping Screws with Collar — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST3.5 | 1.3 | 0.5 | 1.2 | 5.96 | 3.45 | 0.6 | 8.3 | 1 | 1.06 | 7.6 | 3.2 |
| ST4.2 | 1.8 | 0.9 | 1.91 | 10.95 | 6.45 | 1 | 13.5 | 1.6 | 1.66 | 12.2 | 6.15 |
| (ST3.9) | 1.6 | 0.7 | 1.51 | 8.71 | 4.45 | 0.9 | 10.5 | 1.2 | 1.26 | 9.8 | 4.15 |
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