Hexalobular (6 Lobe) socket button head screws, ~ISO 7380
Socket button head screws, Torx head. Strength class 8.8.
| d1 | M2 | M2,5 | M3 | M4 | M5 | M6 | M8 |
|---|---|---|---|---|---|---|---|
| d2 max | 3.5 | 4.7 | 5.7 | 7.6 | 9.5 | 10.5 | 14 |
| k max | 1.3 | 1.5 | 1.65 | 2.2 | 2.75 | 3.3 | 4.4 |
| t max | 0.8 | 0.92 | 1 | 1.4 | 1.6 | 1.9 | 2.6 |
| a ∼ | 2 | 2.4 | 2.8 | 3.9 | 4.5 | 5.6 | 6.8 |
| Bit No. | T6 | T8 | T10 | T20 | T25 | T30 | T40 |
