Cross Recessed Countersunk Head Thread Forming Screws
GB /T 6561 - 1986 十字槽沉头自攻锁紧螺钉
See all versions and complete specifications: Cross Recessed Countersunk Head Thread Forming Screws — Full Specification Page
| Size | P | e | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.8 | 2.7 | 5.2 | 8.9 | 2.7 | 1.6 | 30 | 2 | 2 | 9.3 | 1.3 |
| M4 | 1 | 3 | 6.8 | 10.9 | 3.3 | 2 | 35 | 2.5 | 3 | 11.3 | 1.5 |
| M2.5 | 0.5 | 1.7 | 3.2 | 5.2 | 1.65 | 1 | 18 | 1.25 | 1 | 5.5 | 0.8 |
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