Threaded Rods - Proof Loads - Metric Units
Metric threaded steel rods - typical minimum proof load:
| Nominal Size | Pitch (mm) | Stress Area (mm²) | Minimum Proof Load (kN) 1) | ||
|---|---|---|---|---|---|
| Property Class | |||||
| 4.6 | 8.8 | 10.9 | |||
| M3 | 0.5 | 5.0 | 1.1 | 2.9 | 4.2 |
| M4 | 0.7 | 8.8 | 2.0 | 5.1 | 7.3 |
| M5 | 0.8 | 14.2 | 3.2 | 8.2 | 11.8 |
| M6 | 1 | 20.1 | 4.5 | 11.7 | 16.7 |
| M8 | 1.25 | 36.6 | 8.2 | 21.2 | 30.4 |
| M10 | 1.5 | 58.0 | 13.1 | 33.6 | 48.1 |
| M12 | 1.75 | 84.3 | 19.0 | 48.9 | 70.0 |
| M14 | 2 | 115 | 25.9 | 66.7 | 95.5 |
| M16 | 2 | 157 | 35.3 | 91.1 | 130 |
| M18 | 2.5 | 192 | 43.2 | 115 | 159 |
| M20 | 2.5 | 245 | 55.1 | 147 | 203 |
| M22 | 2.5 | 303 | 68.2 | 182 | 251 |
| M24 | 3 | 353 | 79.4 | 212 | 293 |
| M27 | 3 | 459 | 103 | 275 | 381 |
| M30 | 3.5 | 561 | 126 | 337 | 466 |
| M33 | 3.5 | 694 | 156 | 416 | 576 |
| M36 | 4 | 817 | 184 | 490 | 678 |
| M39 | 4 | 976 | 220 | 586 | 810 |
| M42 | 4.5 | 1121 | 252 | 673 | 930 |
| M48 | 5 | 1473 | 331 | 884 | 1223 |
| M52 | 5 | 1758 | 396 | 1055 | 1459 |
| M64 | 6 | 2676 | 602 | 1606 | 2221 |
1) Mass and Weight - the difference
- 1 in2 = 0.00155 in2
Threaded steel rods are typically used as hangers in piping, HVAC and electrical systems.
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