Hexalobular Socket Countersunk Head Self Drilling Screws with Tapping Screw Thread
QC /T 874 - 2011 梅花槽沉头钻尾自攻钉
See all versions and complete specifications: Hexalobular Socket Countersunk Head Self Drilling Screws with Tapping Screw Thread — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ST2.9 | 1.3 | 0.7~2.25 | 1 | 2.35 | 1.4 | 8.2 | 7.3 | 3.35 | 1.3 | 6.9 | 15 |
| ST3.5 | 1.6 | 1.75~4.4 | 1.39 | 2.8 | 2 | 10.4 | 9.3 | 4.5 | 1.78 | 8.9 | 25 |
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| ST4.2 | 1.8 | 2~6 | 2.02 | 3.15 | 2.4 | 12.6 | 11.3 | 5.6 | 2.42 | 10.9 | 30 |
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