Dimensions & technical reference
DIN 6915:1999
Match the nut with the specified structural bolt and washer assembly. Strength class, lubrication and coating must be agreed for the complete connection.
| Nominal size | P | s max | m max | m min |
|---|---|---|---|---|
| M12 | 1.75 | 22 | 10 | 9.64 |
| M16 | 2 | 27 | 13 | 12.3 |
| M20 | 2.5 | 32 | 16 | 14.9 |
| M22 | 2.5 | 36 | 18 | 16.9 |
| M24 | 3 | 41 | 20 | 18.7 |
| M27 | 3 | 46 | 22 | 20.7 |
| M30 | 3.5 | 50 | 24 | 22.7 |
| M36 | 4 | 60 | 29 | 27.7 |
Dimensional source: 164580 · DIN 6915:1999 ↗. “—” 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: M12 - M36. 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.
Applications and selection
Engineered steelwork connections with a specified bolting assembly.
Provide the governing standard and edition, nut class, finish and documentation. Verify compatibility with the selected structural bolt and washer.
Materials, surface finishes and standards
Specify steel property class and the matched structural assembly. Coating, lubrication, inspection documents and suitability for preloading must be agreed together. Stainless or other custom materials require separate drawing-based review.
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 structural heavy-hex nuts and their material/property requirements. Match the nut to the specified bolt assembly. 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 6915:1999
United States references for a separate inquiry: ASME B18.2.6; ASTM A563. Confirm the exact form, thread system and drawing before quoting.
What to send for a quotation
Start with the size and quantity you need. Include the following details where available; remaining requirements can be confirmed by email.
- Thread & mating part
- Give the nominal diameter, pitch, thread system and mating bolt or rod specification.
- Nut form
- Specify the exact series, standard and edition, or attach a dimensioned drawing.
- Material & finish
- State the required grade or property class and finish. Listed options are reviewed for the requested size.
- Quantity & destination
- Give the quantity for each specification and the delivery destination.
Confirmed per order: MOQ, sample arrangements, lead time, supply combinations and inspection documents. A requested delivery date is reviewed during quotation.
Request a quotation →Common questions about structural nuts
Should structural nuts be ordered as part of an assembly?
Where the governing specification defines a bolting assembly, identify the complete bolt, nut and washer arrangement in the order.
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.
