DIN 7967 covers the dimensional requirements for self-locking counter nuts. Reproduced below: the complete size table, and the companion and equivalent standards referenced when ordering to this document.
DIN 7967 — Scope
DIN 7967 is "Self-locking counter nuts".
Material, property class, surface finish and packaging are governed by separate documents — ISO 898-1 and ISO 898-2 for mechanical property classes, ISO 4042 for electroplated finishes.
Tolerance & Product Grades
DIN 7967 does not divide self-locking counter nuts into product grades. Tolerances are given as limits on the individual dimensions in the table.
Where a general-tolerance class is cited on the drawing instead, it applies to the dimensions not otherwise toleranced.
Dimensions Specified by DIN 7967
| Size | od (mm) | id (mm) | Nut height m (mm) | Width across flats s (mm) | t (mm) | Reference standard |
|---|---|---|---|---|---|---|
| M4 | 4 | 3.5 | 2.5 | 7 | 0.3 | DIN 7967 |
| M5 | 5 | 4.5 | 2.5 | 8 | 0.4 | DIN 7967 |
| M6 | 6 | 5.3 | 3 | 10 | 0.4 | DIN 7967 |
| M8 | 8 | 6.9 | 3.5 | 13 | 0.5 | DIN 7967 |
| M10 | 10 | 8.6 | 4 | 17 | 0.5 | DIN 7967 |
| M12 | 12 | 10.4 | 4.5 | 19 | 0.6 | DIN 7967 |
| M14 | 14 | 12 | 5 | 22 | 0.6 | DIN 7967 |
| M16 | 16 | 14.1 | 5 | 24 | 0.7 | DIN 7967 |
| M18 | 18 | 15.5 | 5.5 | 27 | 0.7 | DIN 7967 |
| M20 | 20 | 17.6 | 6 | 30 | 0.8 | DIN 7967 |
| M22 | 22 | 19.6 | 6 | 32 | 0.8 | DIN 7967 |
| M24 | 24 | 21 | 7 | 36 | 0.9 | DIN 7967 |
| M27 | 27 | 24.2 | 7 | 41 | 1 | DIN 7967 |
| M30 | 30 | 26.6 | 8 | 46 | 1.1 | DIN 7967 |
| M33 | 33 | 29.8 | 8 | 50 | 1.2 | DIN 7967 |
| M36 | 36 | 32.2 | 9 | 55 | 1.3 | DIN 7967 |
| M39 | 39 | 35.2 | 9 | 60 | 1.3 | DIN 7967 |
| M42 | 42 | 37.6 | 11 | 65 | 1.4 | DIN 7967 |
| M45 | 45 | 40.9 | 12 | 70 | 1.5 | DIN 7967 |
| M48 | 48 | 43.9 | 14 | 75 | 1.6 | DIN 7967 |
| M52 | 52 | 48.2 | 16 | 80 | 1.7 | DIN 7967 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Self-Locking Counter Nuts page.
Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
When to Specify DIN 7967
DIN 7967 is still widely used in European mechanical engineering and as a cross-reference on legacy drawings; its ISO equivalent is preferred for new designs.
Custom manufacturing · Made to drawing
Need a nut to this standard in a non-standard size?
Parts built to DIN 7967 are already in the catalog, so a special is usually a variation on existing tooling rather than a new design — which is what keeps the cost down. Made by cold heading or tapping.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
