DIN 558 > DIN EN ISO 4018
| Old norm | DIN 558 | M 5 to M 36 hexagon head screws threaded up to the head; product grade C |
| Current norm: | DIN EN ISO 4018 | Hexagon head screws - Product grade C |
| Current release: 2011-07 | ||
| Changes: | grade 3.6 cancelled | |
| Old norm | DIN 558 | M 5 to M 36 hexagon head screws threaded up to the head; product grade C |
| Current norm: | DIN EN ISO 4018 | Hexagon head screws - Product grade C |
| Current release: 2011-07 | ||
| Changes: | grade 3.6 cancelled | |
