DINReplaced → ISO 10511Draft · single source
DIN 985
Prevailing torque hexagon thin nuts with non-metallic (nylon) insert
- Head · drive
- External hexagon (spanner)
- Thread
- Metric ISO coarse thread
- Tolerance
- 6H
- Property classes
- 56810A2A4
- Materials
- SteelStainless
Replaced by
ISO 10511Current · Draft
Not identical: the width across flats differs for M10 (DIN 17 → ISO 16 mm), M12 (19 → 18 mm), M14 (22 → 21 mm) and M22 (32 → 34 mm); other sizes are unchanged. Other dimensions (e.g. head or nut height) can also differ.
What changed · s
| Size | DIN 985 | ISO 10511 | Δ |
|---|---|---|---|
| M10 | 17 | 16 | −1 |
| M12 | 19 | 18 | −1 |
| M14 | 22 | 21 | −1 |
| M22 | 32 | 34 | +2 |
Source: Würth DIN→ISO changeover list · mm
Dimensions
mm · values as the standard states them| Size | P | s | e | m | h | dw | da | mass | m´ | thread_alt |
|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.5 | 5.5 5.32 – 5.5 | ≥ 6.01 | ≥ 2.4 | 4 3.7 – 4 | ≥ 4.6 | 3 – 3.45 | 0.5 | ≥ 1.65 | — |
| M4 | 0.7 | 7 6.78 – 7 | ≥ 7.66 | ≥ 2.9 | 5 4.7 – 5 | ≥ 5.9 | 4 – 4.6 | 1 | ≥ 2.2 | — |
| M5 | 0.8 | 8 7.78 – 8 | ≥ 8.79 | ≥ 3.2 | 5 4.7 – 5 | ≥ 6.9 | 5 – 5.75 | 1.4 | ≥ 2.75 | — |
| M6 | 1 | 10 9.78 – 10 | ≥ 11.05 | ≥ 4 | 6 5.7 – 6 | ≥ 8.9 | 6 – 6.75 | 2.4 | ≥ 3.3 | — |
| M7 | 1 | 11 10.73 – 11 | ≥ 12.12 | ≥ 4.7 | 7.5 7.14 – 7.5 | ≥ 9.6 | 7 – 7.75 | 3 | ≥ 3.85 | — |
| M8 | 1.25 | 13 12.73 – 13 | ≥ 14.38 | ≥ 5.5 | 8 7.64 – 8 | ≥ 11.6 | 8 – 8.75 | 5.1 | ≥ 4.4 | M8x1 |
| M10 | 1.5 | 17 16.73 – 17 | ≥ 18.9 | ≥ 6.5 | 10 9.64 – 10 | ≥ 15.6 | 10 – 10.8 | 10.6 | ≥ 5.5 | M10x1,25 |
| M12 | 1.75 | 19 18.67 – 19 | ≥ 21.1 | ≥ 8 | 12 11.57 – 12 | ≥ 17.4 | 12 – 13 | 17.2 | ≥ 6.6 | M12x1,25 |
| M14 | 2 | 22 21.67 – 22 | ≥ 24.49 | ≥ 9.5 | 14 13.3 – 14 | ≥ 20.5 | 14 – 15.1 | 26 | ≥ 7.7 | M14x1,5 |
| M16 | 2 | 24 23.67 – 24 | ≥ 26.75 | ≥ 10.5 | 16 15.3 – 16 | ≥ 22.5 | 16 – 17.3 | 34 | ≥ 8.8 | M16x1,5 |
| M18 | 2.5 | 27 26.16 – 27 | ≥ 29.56 | ≥ 13 | 18.5 17.66 – 18.5 | ≥ 24.9 | 18 – 19.5 | 45 | ≥ 9.9 | M18x1,5 |
| M20 | 2.5 | 30 29.16 – 30 | ≥ 32.95 | ≥ 14 | 20 18.7 – 20 | ≥ 27.7 | 20 – 21.6 | 65 | ≥ 11 | M20x1,5 |
| M22 | 2.5 | 32 31 – 32 | ≥ 35.03 | ≥ 15 | 22 20.7 – 22 | ≥ 29.5 | 22 – 23.7 | 75 | ≥ 12.2 | M22x1,5 |
| M24 | 3 | 36 35 – 36 | ≥ 39.55 | ≥ 15 | 24 22.7 – 24 | ≥ 33.2 | 24 – 25.9 | 100 | ≥ 13.2 | M24x2 |
| M27 | 3 | 41 40 – 41 | ≥ 45.2 | ≥ 17 | 27 25.7 – 27 | ≥ 38 | 27 – 29.1 | 162 | ≥ 14.8 | M27x2 |
| M30 | 3.5 | 46 45 – 46 | ≥ 50.85 | ≥ 19 | 30 28.7 – 30 | ≥ 42.7 | 30 – 32.4 | 212 | ≥ 16.5 | M30x2 |
| M33 | 3.5 | 50 46 – 50 | ≥ 55.37 | ≥ 22 | 33 31.4 – 33 | ≥ 46.6 | 33 – 35.6 | 317 | ≥ 18.2 | M33x2 |
| M36 | 4 | 55 53.8 – 55 | ≥ 60.79 | ≥ 25 | 36 34.4 – 36 | ≥ 51.1 | 36 – 38.9 | 415 | ≥ 19.8 | M36x3 |
| M39 | 4 | 60 58.8 – 60 | ≥ 66.44 | ≥ 27 | 39 37.4 – 39 | ≥ 55.9 | 39 – 42.1 | 499 | ≥ 21.5 | M39x3 |
| M42 | 4.5 | 65 63.8 – 65 | ≥ 72.09 | ≥ 29 | 42 40.4 – 42 | ≥ 60.6 | 42 – 45.4 | 628 | ≥ 23.1 | M42x3 |
| M45 | 4.5 | 70 68.1 – 70 | ≥ 76.95 | ≥ 32 | 45 43.4 – 45 | ≥ 64.7 | 45 – 48.6 | 771 | ≥ 24.8 | M45x3 |
| M48 | 5 | 75 73.1 – 75 | ≥ 82.6 | ≥ 36 | 48 46.4 – 48 | ≥ 69.4 | 48 – 51.8 | 998 | ≥ 26.5 | M48x3 |
Ranges read min – max; ≤ / ≥ where the standard gives one limit, ≈ for approximate values. Sizes in (brackets) are non-preferred. Select a row for its size sheet.