Cross Recessed Countersunk Head Tapping Screws
DIN 7982 - 1990 十字槽沉头自攻钉
See all versions and complete specifications: Cross Recessed Countersunk Head Tapping Screws — Full Specification Page
| Standard Body | Standard Number |
|---|---|
| GB | GB /T 846 |
| DIN | DIN EN ISO 7050 |
| ISO | ISO 7050 |
| UNI | UNI 6955 |
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| ST2.2 | 1.1 | 2.8 | 1.7 | 2.6 | 1.1 | 5.5 | 1 | 3 | 5.2 | 2.1 |
| ST2.9 | 1.3 | 4.2 | 2.3 | 3.5 | 1.3 | 7.5 | 2 | 4.6 | 7.14 | 2.7 |
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| ST3.5 | 1.6 | 5 | 3 | 4.3 | 1.6 | 9.5 | 2 | 5.1 | 9.14 | 3.2 |
| (ST3.9) | 1.8 | 7 | 3.8 | 6 | 1.8 | 12.4 | 3 | 7.1 | 11.97 | 3.6 |
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