| Classe 8.8 | ||||||||||
| 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 | 213 | 81249 | 89802 | 274 | 73584 | 81330 | 319 | 66251 | 73225 |
| B | 203 | 73474 | 89802 | 261 | 66542 | 81330 | 305 | 59911 | 73225 | |
| C | 186 | 59868 | 89802 | 239 | 54220 | 81330 | 279 | 48816 | 73225 | |
| D | 149 | 29934 | 89802 | 191 | 27110 | 81330 | 223 | 24408 | 73225 | |
| 20 | A | 300 | 104342 | 115326 | 388 | 94653 | 104617 | 454 | 85289 | 94267 |
| B | 286 | 94357 | 115326 | 370 | 85595 | 104617 | 434 | 77127 | 94267 | |
| C | 262 | 76884 | 115326 | 339 | 69744 | 104617 | 397 | 62844 | 94267 | |
| D | 210 | 38442 | 115326 | 271 | 34872 | 104617 | 318 | 31422 | 94267 | |
| 22 | A | 409 | 130306 | 144023 | 533 | 118370 | 130830 | 626 | 106734 | 117970 |
| B | 391 | 117837 | 144023 | 509 | 107042 | 130830 | 598 | 96520 | 117970 | |
| C | 358 | 96015 | 144023 | 466 | 87220 | 130830 | 548 | 78646 | 117970 | |
| D | 286 | 48007 | 144023 | 373 | 43610 | 130830 | 438 | 39323 | 117970 | |
| 24 | A | 516 | 150252 | 166069 | 667 | 136301 | 150649 | 781 | 122816 | 135745 |
| B | 492 | 135874 | 166069 | 637 | 123258 | 150649 | 746 | 111064 | 135745 | |
| C | 451 | 110712 | 166069 | 584 | 100432 | 150649 | 684 | 90496 | 135745 | |
| D | 361 | 55356 | 166069 | 467 | 50216 | 150649 | 547 | 45248 | 135745 | |
| 27 | A | 759 | 197635 | 218439 | 989 | 179587 | 198491 | 1162 | 161960 | 179009 |
| B | 724 | 178722 | 218439 | 944 | 162401 | 198491 | 1109 | 146461 | 179009 | |
| C | 664 | 145626 | 218439 | 865 | 132327 | 198491 | 1016 | 119339 | 179009 | |
| D | 531 | 72813 | 218439 | 692 | 66163 | 198491 | 813 | 59669 | 179009 | |
| 30 | A | 1031 | 240287 | 265581 | 1341 | 218195 | 241163 | 1573 | 196710 | 217417 |
| B | 984 | 217293 | 265581 | 1280 | 197315 | 241163 | 1501 | 177886 | 217417 | |
| C | 902 | 177054 | 265581 | 1173 | 160775 | 241163 | 1376 | 144944 | 217417 | |
| D | 722 | 88527 | 265581 | 938 | 80387 | 241163 | 1101 | 72472 | 217417 | |
| 33 | A | 1395 | 299334 | 330843 | 1822 | 272169 | 300819 | 2143 | 245536 | 271382 |
| B | 1331 | 270689 | 330843 | 1739 | 246124 | 300819 | 2046 | 222039 | 271382 | |
| C | 1220 | 220562 | 330843 | 1594 | 200546 | 300819 | 1875 | 180921 | 271382 | |
| D | 976 | 110281 | 330843 | 1275 | 100273 | 300819 | 1500 | 90460 | 271382 | |
| 36 | A | 1794 | 351351 | 388336 | 2339 | 319266 | 352873 | 2747 | 287929 | 318238 |
| B | 1713 | 317729 | 388336 | 2232 | 288714 | 352873 | 2623 | 260376 | 318238 | |
| C | 1570 | 258890 | 388336 | 2046 | 235248 | 352873 | 2404 | 212158 | 318238 | |
| D | 1256 | 129445 | 388336 | 1637 | 117624 | 352873 | 1923 | 106079 | 318238 | |
| 39 | A | 2321 | 422063 | 466491 | 3038 | 383928 | 424342 | 3578 | 346438 | 382906 |
| B | 2216 | 381674 | 466491 | 2900 | 347188 | 424342 | 3415 | 313286 | 382906 | |
| C | 2031 | 310994 | 466491 | 2658 | 282894 | 424342 | 3131 | 255270 | 382906 | |
| D | 1625 | 155497 | 466491 | 2127 | 141447 | 424342 | 2504 | 127635 | 382906 | |
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