Applications and selection
Fastening arrangements calling for an all-metal prevailing-torque nut.
State the required locking type, thread, material class, finish and reuse conditions. Confirm torque requirements against the applicable specification.
Dimensions & technical reference
DIN 980 (V):1987
This table is for the all-metal, one-piece type V. Type M is a different construction. State the type and required prevailing-torque performance.
| Nominal size | P · coarse | s max | h max | h min |
|---|---|---|---|---|
| M3 | 0.5 | 5.5 | 3.7 | 3.4 |
| M4 | 0.7 | 7 | 4.2 | 3.9 |
| M5 | 0.8 | 8 | 5.1 | 4.8 |
| M6 | 1 | 10 | 6 | 5.7 |
| M7 | 1 | 11 | 7 | 6.5 |
| M8 | 1.25 | 13 | 8 | 7.5 |
| M10 | 1.5 | 17 | 10 | 9 |
| M12 | 1.75 | 19 | 12 | 11 |
| M14 | 2 | 22 | 14 | 12 |
| M16 | 2 | 24 | 16 | 14 |
| M18 | 2.5 | 27 | 18 | 16 |
| M20 | 2.5 | 30 | 20 | 18 |
| M22 | 2.5 | 32 | 22 | 20 |
| M24 | 3 | 36 | 24 | 22 |
| M27 | 3 | 41 | 27 | 25 |
| M30 | 3.5 | 46 | 30 | 28 |
| M33 | 3.5 | 50 | 33 | 31 |
| M36 | 4 | 55 | 36 | 34 |
Dimensional source: 164580 · DIN 980 (V):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: M5 - 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: 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.
Prevailing-torque requirements depend on nut style, property class, temperature and reuse policy. 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 980 (V):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
- Lock 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 lock nuts
How does an all-metal lock nut differ from a nylon-insert nut?
The prevailing-torque feature is metallic instead of a polymer insert. Select the design by the required operating conditions and the applicable fastener specification.
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.