DINReplaced → ISO 4016Draft · single source
DIN 601
Hexagon head bolts, product grade C
Replaced by
ISO 4016Current · Reviewed
Not identical: the width across flats differs for M10 (DIN 17 → ISO 16 mm), M12 (19 → 18 mm), M14 (22 → 21 mm) and M22 (32 → 34 mm); other sizes are unchanged. Other dimensions (e.g. head or nut height) can also differ.
The dimension table is published under the successor.
What changed · s
| Size | DIN 601 | ISO 4016 | Δ |
|---|---|---|---|
| M10 | 17 | 16 | −1 |
| M12 | 19 | 18 | −1 |
| M14 | 22 | 21 | −1 |
| M22 | 32 | 34 | +2 |
Source: Würth DIN→ISO changeover list · mm
Still valid from this record
- Head · drive
- Hexagon head · External hexagon (spanner)
- Thread
- Metric ISO coarse thread, partial · 6g
- Steel
- steel
Cross-references
- ISO 4016
- replaced by
- CSN 021301
- national · CZ
- EU 24016
- national
Why no table here
The source publishes one identical table for DIN 601, ISO 4016. It matches the official ISO 4016 preview, so it is published under ISO 4016 only (DIN→ISO change: 4 widths across flats, per Würth).
Status source: fasteners.eu, Otto Roth · Accessed 2026-09-23
All 18 standards of this type →