DIN 7991 · M20 · dk max.
For DIN 7991, size is M20; dimension that differs is dk max; iso standard is ISO 10642; din value is 36; iso value is 40.32, verified against its source on 2026-10-12.
- DIN standard
- DIN 7991 verified
- ISO standard
- ISO 10642 verified
- Size
- M20 verified
- Dimension that differs
- dk max. verified
- DIN value
- 36 verified
- ISO value
- 40.32 verified
What the source says
ISO standard, DIN value and ISO value
The source prints these values inside the passage below but does not name them there. The passage shows where each one appears; what ties them to this record is the position on the page, not anything the passage says.
Thread M10 M12 M14 M16 M18 M20 M22 M24 ISO 10642 22.4 26.88 30.8 33.6 – 40.32 – – dk max. DIN 7991 20 24 27 30 33 36 36 39
— wurthindustry.ca, retrieved 2026-09-22
Source
- wurthindustry.cahttps://www.wurthindustry.ca/media/downloads/wic_pdfs/Fasteners_DIN-EN-ISO_Standards.pdf