DIN 934 is the German standard for hexagon nuts. This is the size navigator — pick a size to see width across flats, nut height, pitch and tolerances.
Deterministic evaluation of fastener standards based on geometry, material, and compliance constraints. Complete engineering specifications across all 88 size/grade/finish variants.
Hexagon nuts, metric coarse thread. Nominal dimensions for width across flats (s) and head height (k) across 22 metric sizes. Values in millimetres.
| Size | Width Across Flats (s) | Head Height (k) |
|---|---|---|
| M6 | 9.78 | 3.9 |
| M8 | 12.73 | 5.2 |
| M10 | 15.73 | 6.4 |
| M12 | 17.73 | 8.3 |
| M14 | 20.67 | 9.7 |
| M16 | 23.67 | 11.3 |
| M18 | 26.16 | 12.1 |
| M20 | 29.16 | 13.5 |
| M22 | 33 | 14.5 |
| M24 | 35 | 16.2 |
| M27 | 40 | 18 |
| M30 | 45 | 19.4 |
| M33 | 49 | 21.9 |
| M36 | 53.8 | 23.5 |
| M39 | 58.8 | 25.4 |
| M42 | 63.1 | 25.9 |
| M45 | 68.1 | 27.5 |
| M48 | 73.1 | 29.1 |
| M52 | 78.1 | 32.3 |
| M56 | 82.8 | 34.7 |
| M60 | 87.8 | 37.1 |
| M64 | 92.8 | 39.3 |
DIN 934 is dimensionally cross-referenced with the following standards:
| Standard | Name | Status | Risk Note |
|---|---|---|---|
| DIN 934, ISO 4032, DIN 125-A, DIN 127-A, ISO 7089, DIN 7980, ISO 4017, ISO 4014, ASME B18.2.1, ASME B18.2.2, ASME B18.21.1, ASME B18.3, ISO 4762 | Equivalent standards in cluster | IN CLUSTER | — |
| Related Standard | Relationship | Confidence |
|---|---|---|
| ISO 4032 | Equivalent | 0.98 |
| DIN 125-A | Matching | 0.80 |
| DIN 127-A | Matching | 0.80 |
DIN 934 in the concept layer — Fastener Knowledge:
Select a size to view its complete engineering data — including dimensional tolerances, material grades, mechanical properties, and surface finish options.
Non-canonical standard paths are automatically redirected to their canonical ISO equivalents via the Engineering Data Authority Lock. Equivalent standards: DIN 934, ISO 4032, DIN 125-A, DIN 127-A, ISO 7089, DIN 7980, ISO 4017, ISO 4014, ASME B18.2.1, ASME B18.2.2, ASME B18.21.1, ASME B18.3, ISO 4762
| Source (Non-Canonical) | Target (Canonical Route) |
|---|---|
| /iso-4032/ | /standards/din-934/ |
8371444a90b010ab7986b501e67860c6bb23431532861987329b7628fc65f676
FROZEN: 2026-08-17 20:13:55
ASSET: standard_map_core.csv
CLUSTER: [DIN 934, ISO 4032, DIN 125-A, DIN 127-A, ISO 7089, DIN 7980, ISO 4017, ISO 4014, ASME B18.2.1, ASME B18.2.2, ASME B18.21.1, ASME B18.3, ISO 4762]
DIN 934 Hexagon Nut per DIN 934 specification, available in A2-70 grade with Stainless Steel finish. Engineered for industrial OEM applications requiring 700.0 MPa tensile strength and reliable long-term fastening performance.
DIN 934 is the German standard for hexagon nuts with metric coarse and fine thread. This page lists the dimensional values size by size.
DIN 934 and ISO 4032 both cover metric hexagon nuts but are different standards. Check the dimension table for the size and tolerance grade you need before substituting.