ART. 388 Machine screws mushroom head square neck
Material - steel
NN = 04 Blue zinc
| Code | D | L | T |
|---|---|---|---|
| 21.05.05.NN | M6 | 40 | Ø 15 |
| 21.05.10.NN | M6 | 50 | Ø 15 |
| 21.05.15.NN | M6 | 60 | Ø 15 |
| 21.05.20.NN | M6 | 80 | Ø 15 |
| 21.05.25.NN | M8 | 50 | Ø 18 |
| 21.05.30.NN | M8 | 60 | Ø 18 |
| 21.05.35.NN | M8 | 80 | Ø 18 |
| 21.05.40.NN | M8 | 90 | Ø 18 |