Applications and selection
Steelwork and other engineered connections that specify structural bolting components.
Include the governing assembly standard, property class, finish and required documents. Confirm compatible nuts and washers rather than selecting each component independently.
Dimensions & technical reference
DIN 6914:1989
For a structural connection, specify the complete matched bolt, nut and washer assembly and its required mechanical properties. Stainless custom parts must not be represented as this steel structural assembly.
| Nominal size | P | k nominal | s max | ds max |
|---|---|---|---|---|
| M12 | 1.75 | 8 | 22 | 12.7 |
| M16 | 2 | 10 | 27 | 16.7 |
| M20 | 2.5 | 13 | 32 | 20.84 |
| M22 | 2.5 | 14 | 36 | 22.84 |
| M24 | 3 | 15 | 41 | 24.84 |
| M27 | 3 | 17 | 46 | 27.84 |
| M30 | 3.5 | 19 | 50 | 30.84 |
| M36 | 4 | 23 | 60 | 37 |
Dimensional source: 164580 · DIN 6914:1989 ↗. “—” 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.
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.
U.S. structural fasteners are specified as an assembly. Confirm bolt type and grade, nut, washer, coating and installation requirements. 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 6914:1989
United States references for a separate inquiry: ASME B18.2.6; ASTM F3125/F3125M. Confirm the exact form, thread system and drawing before quoting.
What to send for a quotation
- Structural Bolts 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 structural bolts
Can a structural bolt be paired with any nut?
The nut and washer requirements should be checked against the specified bolting assembly. A matching thread alone does not establish suitability for the connection.
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.