Applications and selection
Assemblies requiring a low-profile non-metallic-insert nut and suitable operating conditions.
Confirm the DIN 985 reference, nut height, thread and required mechanical properties. For flange versions, request the appropriate flange-nut drawing separately.
Dimensions & technical reference
DIN 985:1987
Low-pattern nut with a non-metallic insert. Overall height h includes the insert collar; m refers to the metal body. Confirm service temperature.
| Nominal size | P · coarse | s max | h max | m min |
|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 4 | 2.4 |
| M4 | 0.7 | 7 | 5 | 2.9 |
| M5 | 0.8 | 8 | 5 | 3.2 |
| M6 | 1 | 10 | 6 | 4 |
| M7 | 1 | 11 | 7.5 | 4.7 |
| M8 | 1.25 | 13 | 8 | 5.5 |
| M10 | 1.5 | 17 | 10 | 6.5 |
| M12 | 1.75 | 19 | 12 | 8 |
| M14 | 2 | 22 | 14 | 9.5 |
| M16 | 2 | 24 | 16 | 10.5 |
| M18 | 2.5 | 27 | 18.5 | 13 |
| M20 | 2.5 | 30 | 20 | 14 |
| M22 | 2.5 | 32 | 22 | 15 |
| M24 | 3 | 36 | 24 | 15 |
| M27 | 3 | 41 | 27 | 17 |
| M30 | 3.5 | 46 | 30 | 19 |
| M33 | 3.5 | 50 | 33 | 22 |
| M36 | 4 | 55 | 36 | 25 |
Dimensional source: 164580 · DIN 985:1987 ↗. “—” 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: M3 - M30. 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: Zinc Plated, Stainless. 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. references for prevailing-torque locknuts. DIN 985 dimensions are not automatically interchangeable. Standards from different systems can vary in dimensions, threads, product scope and test requirements. Confirm the exact designation and edition in the quotation.
Technical reference: ISO nut standards catalog. Product dimensions and the quoted standard must be confirmed together.
Ordering standard
DIN 985:1987
United States references for a separate inquiry: ASME B18.16.6 (inch); ASME B18.16.7M (metric). Confirm the exact form, thread system and drawing before quoting.
What to send for a quotation
- Nylon Lock Thin 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 nylon lock thin nuts
Is ISO 7043 the same as DIN 985?
No. ISO 7043 identifies a flange-nut type with a non-metallic insert; it should not be treated as a direct label for a non-flanged DIN 985 nut.
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.