Din6921 Bolt Carbone Icyuma Cyirabura Oxide Icyiciro 8.8 10.9 12.9
Ibipimo byumusaruro
| ibisobanuro byinsanganyamatsiko d | M12 | M16 | M20 | (M22) | M24 | (M27) | M30 | M36 | |
| P. | ikibuga | 1.75 | 2 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 |
| b | L≤100mm | 25 | 31 | 36 | 38 | 41 | 44 | 49 | 56 |
| L ＞ 100mm | 32 | 38 | 43 | 45 | 48 | 51 | 56 | 63 | |
| c | Icyiza | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Min | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | |
| da | Icyiza | 14.7 | 18.7 | 23.24 | 25.24 | 27.64 | 31.24 | 34.24 | 41 |
| ds | Icyiza | 12.7 | 16.7 | 20.84 | 22.84 | 24.84 | 27.84 | 30.84 | 37 |
| Min | 11.3 | 15.3 | 19.16 | 21.16 | 23.16 | 26.16 | 29.16 | 35 | |
| dMuri | Min | 19.2 | 24.9 | 31.4 | 33.3 | 38 | 42.8 | 46.5 | 55.9 |
| na | Min | 22.78 | 29.56 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 66.44 |
| k | nominal | 7.5 | 10 | 12.5 | 14 | 15 | 17 | 18.7 | 22.5 |
| Icyiza | 7.95 | 10.75 | 13.4 | 14.9 | 15.9 | 17.9 | 19.75 | 23.55 | |
| Min | 7.05 | 9.25 | 11.6 | 13.1 | 14.1 | 16.1 | 17.65 | 21.45 | |
| k1 | Min | 4.9 | 6.5 | 8.1 | 9.2 | 9.9 | 11.3 | 12.4 | 15 |
| r | Min | 0.6 | 0.6 | 0.8 | 0.8 | 1 | 1.2 | 1.2 | 1.5 |
| s | Icyiza | 21 | 27 | 34 | 36 | 41 | 46 | 50 | 60 |
| Min | 20.16 | 26.16 | 33 | 35 | 40 | 45 | 49 | 58.8 | |
| Ingingo b | - | - | - | - | - | - | - | - | |
Ibisobanuro ku musaruro
Ibyuma byubaka ibyuma ni imbaraga-zikomeye kandi nubwoko bwibigize bisanzwe. Imikorere myiza yo kwizirika, ikoreshwa mubyuma byubuhanga nubuhanga kugirango byongere ingaruka zifatika. Ku byuma rusange byubatswe, ibyuma bisabwa byubatswe ni urwego 8.8 cyangwa hejuru, kimwe nicyiciro 10.9 nicyiciro cya 12.9, byose ni ibyuma bikomeye byubaka ibyuma.
Ibyuma byubaka ibyuma bikoreshwa cyane mubwubatsi bwububiko kugirango uhuze aho uhuza ibyuma byubatswe.
Ibyuma byubatswe byubatswe bigabanijwemo torsion shear-imbaraga-nini nini nini nini ya mpande esheshatu. Ingano nini ya hexagonal nini-ikomeye cyane ni murwego rwohejuru-rwinshi rwimigozi isanzwe, mugihe torsion shear-imbaraga-nini nini ni uburyo bunoze bwubwoko bunini bwa hexagonal-imbaraga-nini zo kubaka neza.
Ibintu bikeneye kwitabwaho mubwubatsi
Kubaka ibyuma byubaka ibyuma bigomba kubanza gukomera hanyuma bigakomera, icyuma cya mbere cyogosha ibyuma bigomba gukoresha ubwoko bwingaruka zamashanyarazi cyangwa amashanyarazi ashobora guhindurwa, kandi ibyuma byanyuma byogosha ibyuma bifite icyifuzo gikomeye, icyuma cyumuriro wamashanyarazi kigomba gukoreshwa muburyo bwanyuma bwa torsion-shear ubwoko bwicyuma cyumuringa wicyuma kigomba gukoreshwa muburyo bwicyuma cyumuringa wicyuma cyumuringa wicyuma cyubwoko bwicyuma cya tike Bolt. Ibyuma binini bya mpande esheshatu bigizwe na bolt imwe, umutobe umwe, hamwe no gukaraba. Torsional shear ubwoko bwibyuma byubatswe, na bolt, ibinyomoro, ibyuma byubatswe binini hexagon bolt yogeje.