Minimum ultimate tensile loads
| Thread | Nominal stress area (mm 2) | Property class | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 9.6 | 10.9 | 12.9 | ||
| Ultimate tensile load (N) | |||||||||||
| M3 | 5.03 | 1660 | 2010 | 2110 | 2510 | 2620 | 3020 | 4020 | 4530 | 5230 | 6140 |
| M3.5 | 6.78 | 2240 | 2710 | 2850 | 3390 | 3530 | 4070 | 5420 | 6100 | 7050 | 8270 |
| M4 | 8.76 | 2900 | 3510 | 3690 | 4390 | 4570 | 5270 | 7020 | 7900 | 9130 | 10700 |
| M5 | 14.2 | 4690 | 5680 | 5960 | 7100 | 7380 | 8520 | 11350 | 12800 | 14800 | 17300 |
| M6 | 20.1 | 6630 | 8040 | 8440 | 10000 | 10400 | 12100 | 16100 | 18100 | 20900 | 24500 |
| M7 | 28.9 | 9540 | 11600 | 12100 | 14400 | 15000 | 17300 | 23100 | 26000 | 30100 | 35300 |
| M8 | 36.6 | 12100 | 14600 | 15400 | 18300 | 19000 | 22000 | 29200 | 32900 | 38100 | 44600 |
| M10 | 58 | 19100 | 23200 | 24400 | 29000 | 30200 | 34800 | 46400 | 52200 | 60300 | 70800 |
| M12 | 84.3 | 27800 | 33700 | 35400 | 42200 | 42800 | 50600 | 67400 | 75900 | 87700 | 103000 |
| M14 | 115 | 38000 | 46000 | 48300 | 57500 | 59800 | 69000 | 92000 | 104000 | 120000 | 140000 |
| M16 | 157 | 51800 | 62000 | 65900 | 78500 | 81600 | 94000 | 125000 | 141000 | 163000 | 192000 |
| M18 | 192 | 63400 | 76800 | 80600 | 96000 | 99800 | 115000 | 159000 | - | 200000 | 234000 |
| M20 | 245 | 80800 | 98000 | 103000 | 122000 | 127000 | 147000 | 203000 | - | 255000 | 299000 |
| M22 | 303 | 100000 | 121000 | 127000 | 152000 | 158000 | 182000 | 252000 | - | 315000 | 370000 |
| M24 | 353 | 116000 | 141000 | 148000 | 176000 | 184000 | 212000 | 293000 | - | 367000 | 431000 |
| M27 | 459 | 152000 | 184000 | 193000 | 230000 | 239000 | 275000 | 381000 | - | 477000 | 560000 |
| M30 | 561 | 185000 | 224000 | 236000 | 280000 | 292000 | 337000 | 466000 | - | 583000 | 684000 |
| M33 | 694 | 229000 | 278000 | 292000 | 347000 | 361000 | 416000 | 576000 | - | 722000 | 847000 |
| M36 | 817 | 270000 | 327000 | 343000 | 408000 | 425000 | 490000 | 678000 | - | 850000 | 997000 |
| M39 | 976 | 322000 | 390000 | 410000 | 488000 | 508000 | 586000 | 810000 | - | 1020000 | 1200000 |