| Classe 6.8 | ||||||||||
| d nominal (mm) | Précision de serrage | µ moyen=0.10 | µ moyen=0.15 | µ moyen=0.20 | ||||||
| Cs (N.m) | Fomin (N) | FoMax (N) | Cs (N.m) | Fomin (N) | FoMax (N) | Cs (N.m) | Fomin (N) | FoMax (N) | ||
| 18 | A | 159 | 60936 | 67351 | 205 | 55188 | 60998 | 239 | 49688 | 54919 |
| B | 152 | 55105 | 67351 | 196 | 49907 | 60998 | 228 | 44933 | 54919 | |
| C | 139 | 44900 | 67351 | 179 | 40665 | 60998 | 209 | 36612 | 54919 | |
| D | 111 | 22450 | 67351 | 143 | 20332 | 60998 | 167 | 18306 | 54919 | |
| 20 | A | 225 | 78256 | 86494 | 291 | 70990 | 78463 | 341 | 63966 | 70700 |
| B | 214 | 70767 | 86494 | 278 | 64197 | 78463 | 325 | 57845 | 70700 | |
| C | 196 | 57662 | 86494 | 254 | 52308 | 78463 | 298 | 47133 | 70700 | |
| D | 157 | 28831 | 86494 | 203 | 26154 | 78463 | 238 | 23566 | 70700 | |
| 22 | A | 307 | 97729 | 108017 | 400 | 88777 | 98123 | 470 | 80051 | 88478 |
| B | 293 | 88377 | 108017 | 382 | 80282 | 98123 | 448 | 72391 | 88478 | |
| C | 269 | 72011 | 108017 | 350 | 65415 | 98123 | 411 | 58985 | 88478 | |
| D | 215 | 36005 | 108017 | 280 | 32707 | 98123 | 329 | 29492 | 88478 | |
| 24 | A | 387 | 112689 | 124552 | 500 | 102225 | 112986 | 586 | 92112 | 101809 |
| B | 369 | 101906 | 124552 | 478 | 92443 | 112986 | 559 | 83298 | 101809 | |
| C | 338 | 83034 | 124552 | 438 | 75324 | 112986 | 513 | 67872 | 101809 | |
| D | 270 | 41517 | 124552 | 350 | 37662 | 112986 | 410 | 33936 | 101809 | |
| 27 | A | 569 | 148226 | 163829 | 741 | 134690 | 148868 | 871 | 121470 | 134257 |
| B | 543 | 134041 | 163829 | 708 | 121801 | 148868 | 832 | 109846 | 134257 | |
| C | 498 | 109219 | 163829 | 649 | 99245 | 148868 | 762 | 89504 | 134257 | |
| D | 398 | 54609 | 163829 | 519 | 49622 | 148868 | 610 | 44752 | 134257 | |
| 30 | A | 773 | 180215 | 199185 | 1005 | 163646 | 180872 | 1180 | 147532 | 163062 |
| B | 738 | 162969 | 199185 | 960 | 147986 | 180872 | 1126 | 133414 | 163062 | |
| C | 677 | 132790 | 199185 | 880 | 120581 | 180872 | 1032 | 108708 | 163062 | |
| D | 541 | 66395 | 199185 | 704 | 60290 | 180872 | 826 | 54354 | 163062 | |
| 33 | A | 1046 | 224500 | 248132 | 1366 | 204126 | 225614 | 1607 | 184151 | 203536 |
| B | 998 | 203017 | 248132 | 1304 | 184593 | 225614 | 1534 | 166529 | 203536 | |
| C | 915 | 165421 | 248132 | 1195 | 150409 | 225614 | 1406 | 135690 | 203536 | |
| D | 732 | 82710 | 248132 | 956 | 75204 | 225614 | 1125 | 67845 | 203536 | |
| 36 | A | 1346 | 263513 | 291252 | 1754 | 239449 | 264655 | 2060 | 215947 | 238679 |
| B | 1285 | 238297 | 291252 | 1674 | 216535 | 264655 | 1967 | 195282 | 238679 | |
| C | 1177 | 194168 | 291252 | 1535 | 176436 | 264655 | 1803 | 159119 | 238679 | |
| D | 942 | 97084 | 291252 | 1228 | 88218 | 264655 | 1442 | 79559 | 238679 | |
| 39 | A | 1741 | 316547 | 349868 | 2279 | 287946 | 318257 | 2683 | 259828 | 287179 |
| B | 1662 | 286255 | 349868 | 2175 | 260392 | 318257 | 2561 | 234964 | 287179 | |
| C | 1523 | 233245 | 349868 | 1994 | 212171 | 318257 | 2348 | 191452 | 287179 | |
| D | 1218 | 116622 | 349868 | 1595 | 106085 | 318257 | 1878 | 95726 | 287179 | |
| ©2003 BLAISE sa | ||||||||||