Applications and selection
Assemblies requiring an integral flange to bear against the mating component.
Specify whether the bearing face is plain or serrated and check the flange diameter. Select the material and property requirements to suit the mating fastener.
Dimensions & technical reference
DIN 6923:1983
Specify serrated or smooth bearing face. Serrations, coating and bearing material affect the joint and must be selected together.
| Nominal size | P · coarse | s max | m max | dc max |
|---|---|---|---|---|
| M5 | 0.8 | 8 | 5 | 11.8 |
| M6 | 1 | 10 | 6 | 14.2 |
| M8 | 1.25 | 13 | 8 | 17.9 |
| M10 | 1.5 | 15 | 10 | 21.8 |
| M12 | 1.75 | 18 | 12 | 26 |
| M14 | 2 | 21 | 14 | 29.9 |
| M16 | 2 | 24 | 16 | 34.5 |
| M20 | 2.5 | 30 | 20 | 42.8 |
Dimensional source: 164580 · DIN 6923:1983 ↗. “—” means no value listed for this combination. P is thread pitch; min / max are dimensional limits. The selection above is not the full standard or a stock list.
Catalog inquiry range: M5 - M20. Availability, lengths, grades and finishes are confirmed by quotation. Sizes outside the cited reference table require the applicable standard dimensions or an approved drawing. Quote the exact standard and edition; DIN, ISO and U.S. references are not automatically interchangeable.
Materials, surface finishes and standards
Materials for this series: Carbon Steel, Stainless Steel. Surface finishes: Black Oxide, Zinc Plated, HDG. Compatibility between the grade, finish and operating environment needs to be confirmed.
For titanium, nickel alloy or other non-ferrous requirements, include the exact material grade and drawing. Required mechanical properties, inspection documents and traceability should be stated in the inquiry.
Related U.S. dimensional references for hex flange nuts. Confirm flange form, serrations and prevailing-torque feature if required. Standards from different systems can vary in dimensions, threads, product scope and test requirements. Confirm the exact designation and edition in the quotation.
Ordering standard
DIN 6923:1983
United States references for a separate inquiry: ASME B18.2.2 (inch); ASME B18.2.4.4M (metric). Confirm the exact form, thread system and drawing before quoting.
What to send for a quotation
- Hex Flange Nuts or your part number, with the relevant standard and edition.
- Exact dimensions, thread details, quantity and any critical tolerances.
- Material grade, surface finish, inspection requirements and delivery destination.
- For customization, a drawing revision and a description of the mating assembly.
Common questions about hex flange nuts
Are all flange nuts locking nuts?
No. A flange describes the geometry, not a universal locking performance. If prevailing torque or another retention feature is required, specify it explicitly.
Can I request a size or material outside this listing?
Yes. Send the required dimensions and exact material grade for review. A quotation is needed to confirm feasibility, price and lead time.