Hexalobular Socket Raised Countersunk (oval) Head Drilling Screws with Tapping Screw Thread
QC /T 873 - 2011 梅花槽半沉头钻尾自攻钉
See all versions and complete specifications: Hexalobular Socket Raised Countersunk (oval) Head 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 | 1.4 | 3.35 | 0.8 | 2.35 | 8.2 | 7.3 | 8.5 | 15 | 6.9 | 1.4 |
| ST3.5 | 1.6 | 2.03 | 4.5 | 1.2 | 2.8 | 10.4 | 9.3 | 9.5 | 25 | 8.9 | 2 |
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| ST4.2 | 1.8 | 2.42 | 5.6 | 1.4 | 3.15 | 12.6 | 11.3 | 12 | 30 | 10.9 | 2.4 |
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