ISO 7042 M20 All-Metal Hexagon Nut
In stock in 13 material, grade and finish combinations.
Dimensions at M20
mm · ISO 7042 · dimensions from 1997 · current edition 2025| Dimension | Nominal | Min | Max | DIN 980 | |
|---|---|---|---|---|---|
| d | Thread size | M20 | – | – | M20 |
| P | Thread pitch | 2.5 | – | – | 2.5 |
| da | Underhead diameter | – | – | 21.6 | 21.6 |
| da | Clearance diameter | – | 20 | – | 20 |
| dw | Bearing diameter | – | 27.7 | – | 27.7 |
| e | Width across corners | – | 32.95 | – | 32.95 |
| h | Thickness | – | 19 | 20.3 | 18–20 |
| mw | Wrenching height | – | 13.52 | – | 11 |
| s | Width across flats | – | 29.16 | 30 | 29.16–30 |
- DIN 980
- Values in bold differ from ISO 7042.
- Approx. weight
- ≈ 76.28 kg per 1 000 pieces · Bare steel, before coating and packing.13.1 pieces per kg