DIN 558 — Hexagon screws, Thread Approximately to Head, Metric Thread, Type g — ISO 4018
What is the din standard for DIN 558 — Hexagon screws, Thread Approximately to Head, Metric Thread, Type g — ISO 4018?
For DIN 558, fastener description is Hexagon screws, Thread Approximately to Head, Metric Thread, Type g; iso equivalent is 4018; en iso number is 4018; date of current standard/modified is 2001-03; title of replacement standard is Hexagon head screws – Product grade C, verified against its source on 2026-10-12.
Hexagon screws, Thread Approximately to Head, Metric Thread, Type g | 558 | 4018 | 24018 | 4018 | 4018 | 2001-03 | Hexagon head screws – Product grade C | Nominal size extended; width across flats according to DIN ISO 272 included |
— fullerfasteners.com, retrieved 2026-09-22
- DIN standard
- 558 verified
- Fastener description
- Hexagon screws, Thread Approximately to Head, Metric Thread, Type g verified
- ISO equivalent
- 4018 verified
- EN ISO number
- 4018 verified
- Date of current standard/modified
- 2001-03 verified
- Title of replacement standard
- Hexagon head screws – Product grade C verified
- Modification notes
- Nominal size extended; width across flats according to DIN ISO 272 included verified
- Interchangeability
- Fully interchangeable per monsterbolts.com
- Variant note
- Alt coarse hex FT. per monsterbolts.com
What monsterbolts.com says
Hex Head Bolts (FT), Metric Coarse | DIN 558 | ISO 4018 | Fully interchangeable | Alt coarse hex FT.
— monsterbolts.com, retrieved 2026-09-21
What trfastenings.com says
DIN 558 | ISO 4018 | | Hexagon Head Screws |
— trfastenings.com, retrieved 2026-08-12
Sources
- fullerfasteners.comhttps://fullerfasteners.com/tech/din-iso-en-crossover-chart/
- monsterbolts.comhttps://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
- trfastenings.comhttps://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards