DIN 557 Square Nuts Standards Table and Weight Chart
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- Steel: –
- Stainless: A 2, A4
Terminology and Measurements
- m – the height of the nut
- d – the nominal diameter of the thread
- s – size square
- MW – height
| d | P | dw | e | m | mw | s | weight | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Thread | min. | max. | min. | Nominal size max. | min. | min. | Nominal size max. | min. | Kg/pc | |
| M5 | 0.8 | 6.7 | 11.3 | 9.93 | 4 | 3.52 | 2.5 | 8 | 7.64 | 1.31 |
| M6 | 1 | 8.7 | 14.1 | 12.53 | 5 | 4.52 | 3.2 | 10 | 9.64 | 2.77 |
| M8 | 1.25 | 11.5 | 18.4 | 16.34 | 6.5 | 5.92 | 4.1 | 13 | 12.57 | 5.5 |
| M10 | 1.5 | 14.5 | 22.6 | 20.24 | 8 | 7.42 | 5.2 | 16 | 15.57 | 10.7 |
| 15.5 | 24 | 21.54 | 0 | 0 | 0 | 17 | 16.57 | 13 | ||
| M12 | 1.75 | 16.5 | 25.4 | 22.84 | 10 | 9.42 | 6.6 | 18 | 17.57 | 16.3 |
| 17.2 | 26.9 | 24.02 | 0 | 0 | 0 | 19 | 18.48 | 19.1 | ||
| M16 | 2 | 22 | 33.9 | 30.11 | 13 | 12.3 | 8.6 | 24 | 23.16 | 38.2 |