Din6921 Bolt Carbon Steel Black Oxide Fasalka 8.8 10.9 12.9
Halbeegga wax-soo-saarka
| tilmaanta dunta d | M12 | M16 | M20 | (M22) | M24 | (M27) | M30 | M36 | |
| P | garoonka | 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 | Max | 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 | Max | 14.7 | 18.7 | 23.24 | 25.24 | 27.64 | 31.24 | 34.24 | 41 |
| ds | Max | 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 | |
| dGudaha | Min | 19.2 | 24.9 | 31.4 | 33.3 | 38 | 42.8 | 46.5 | 55.9 |
| iyo | Min | 22.78 | 29.56 | 37.29 | 39.55 | 45.2 | 50.85 | 55.37 | 66.44 |
| k | magac ahaan | 7.5 | 10 | 12.5 | 14 | 15 | 17 | 18.7 | 22.5 |
| Max | 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 | Max | 21 | 27 | 34 | 36 | 41 | 46 | 50 | 60 |
| Min | 20.16 | 26.16 | 33 | 35 | 40 | 45 | 49 | 58.8 | |
| Xarig b | - | - | - | - | - | - | - | - | |
Sharaxaada wax soo saarka
Dhalooyinka qaab dhismeedka birtu waa boolal aad u sarreeya iyo sidoo kale nooc ka mid ah qaybta caadiga ah. Waxqabadka xidhidhiyaha wanaagsan, oo loo isticmaalo qaab-dhismeedka birta iyo injineernimada si kor loogu qaado saamaynta xidhitaanka. Qaab dhismeedka guud ee birta, birta qaab dhismeedka loo baahan yahay waa fasalka 8.8 ama ka sareeya, iyo sidoo kale fasalka 10.9 iyo fasalka 12.9, kuwaas oo dhamaantood ah birta qaab dhismeedka sare ee birta.
Dhalooyinka qaab dhismeedka birta waxaa inta badan loo adeegsadaa injineernimada qaab dhismeedka birta si ay isugu xiraan meelaha isku xirka ee birta qaab dhismeedka birta.
Dhalooyinka qaab dhismeedka birta waxay u qaybsamaan boolal xoog sare leh oo xiirid torsion ah iyo boolal waaweyn oo laba geesood ah. Boolal waaweyn oo laba geesood ah ayaa iska leh darajada xoogga sare ee boolal caadi ah, halka torsion-xiiritaanka boolal-xoog-sare ay yihiin nooc la hagaajiyay oo ah boolal waaweyn oo xoog badan oo laba geesood ah si dhismo fiican loo sameeyo.
Arrimaha u baahan fiiro gaar ah xagga dhismaha
Dhismaha birta qaab dhismeedka birta waa in marka hore la adkeeyo ka dibna la adkeeyo, marka hore ee adkeynaya qaab dhismeedka birta waxay u baahan tahay in la isticmaalo nooca saamaynta korantada ee korantada ama korantada korantada ee la hagaajin karo. nooca torsion-xiirid bolt qaab-dhismeedka birta. Biro dhismeed oo laba geesood ah oo waaweyn oo ka kooban hal bool, hal laws, iyo laba weel. Nooca xiiridda torsional birta qaab dhismeedka biraha, by bool, lowska, qaab-dhismeedka birta saddex geesood weyn bolt ah halabuurka dhaqe.