Self drilling screw countersunk head DIN 7504O
A2 is used only for soft materials.
| d1 | 2.9 | 3.5 | 3.9 | 4.2 | 4.8 | 5.5 | 6.3 |
|---|---|---|---|---|---|---|---|
| d2 | 5.5 | 6.8 | 7.5 | 8.1 | 9.5 | 10.8 | 12.4 |
| k ~ | 1.7 | 2.1 | 2.3 | 2.5 | 3 | 3.4 | 3.8 |
| Drill speed, rpm | - | - | - | - | - | - | - |
| Steel | 1800-2500 | 1800-2500 | 1800-2500 | 1800-2500 | 1800-2500 | 1000-1800 | 1000-1800 |
| Stainless steel | 1000-1500 | 1000-1500 | 1000-1500 | 1000-1500 | 1000-1500 | 600-1000 | 600-1000 |
| Max. torque, Nm | 1.5 | 2.8 | 3.8 | 4.7 | 6.9 | 10.4 | 16.9 |
| m ~ | 3 | 4.2 | 4.6 | 4.7 | 5.1 | 6.8 | 7.1 |
| Bit No. | 1 | 2 | 2 | 2 | 2 | 3 | 3 |
| L1 | 4.5 | 5 | 6 | 7 | 8 | 10 | 11 |
| For plate thickness | 0,7-1,9 | 0,7-2,25 | 0,7-2,4 | 1,75-3 | 1,75-4,4 | 1,75-5,25 | 2-6 |
