Din6921 Bolt Carbon Steel Black Oxide Ọkwa 8.8 10.9 12.9
Oke mmepụta
| nkọwa eri d | M12 | M16 | M20 | (M22) | M24 | (M27) | M30 | M36 | |
| P | pitch | 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 | Oke | 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 | Oke | 14.7 | 18.7 | 23.24 | 25.24 | 27.64 | 31.24 | 34.24 | 41 |
| ds | Oke | 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 | |
| dN'ime | 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 | nke aha | 7.5 | 10 | 12.5 | 14 | 15 | 17 | 18.7 | 22.5 |
| Oke | 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 | Oke | 21 | 27 | 34 | 36 | 41 | 46 | 50 | 60 |
| Min | 20.16 | 26.16 | 33 | 35 | 40 | 45 | 49 | 58.8 | |
| Eriri b | - | - | - | - | - | - | - | - | |
Nkọwa mmepụta
Ngwongwo arụrụ arụ nchara bụ bolts dị ike yana kwa ụdị akụrụngwa ọkọlọtọ. Ọmarịcha arụmọrụ nke ọma, nke a na-eji na nchara nchara na injinia iji kwalite mmetụta nkenke. N'ihe owuwu nchara n'ozuzu, ihe mkpuchi nchara nchara achọrọ bụ ọkwa 8.8 ma ọ bụ karịa, yana ọkwa 10.9 na ọkwa 12.9, ha niile bụ bolts nhazi nchara siri ike.
A na-ejikarị bolts arụ ọrụ ígwè eme ihe na nhazi nhazi ígwè iji jikọọ isi njikọ nke efere nhazi ígwè.
A na-ekewa bolts arụrụ arụ nchara n'ime bolts siri ike dị elu na torsion shiee na nnukwu ihe mgbochi dị elu hexagonal. Nnukwu bolts dị elu hexagonal bụ nke ọkwa dị elu nke skru nkịtị, ebe ihe mkpuchi ike dị elu nke torsion bụ ụdị nkwalite dị elu nke nnukwu ihe mgbochi hexagonal dị elu maka ịrụ ọrụ ka mma.
Ihe ndị chọrọ nlebara anya na owuwu
Ihe owuwu nke ihe owuwu ígwè ahụ ga-ebu ụzọ sie ike wee sie ike, nke mbụ na-eme ka ihe nrụpụta ígwè dị mkpa iji ụdị mmetụta eletriki eletrik ma ọ bụ mgbanaka ọkụ eletrik na-agbanwe agbanwe, na nke ikpeazụ tightening ígwè Ọdịdị bolt nwere arịrịọ siri ike. torsion-shiee ụdị ígwè Ọdịdị bolt. Nnukwu ihe nrụnye igwe hexagonal nwere otu bolt, otu aku, na igwe ịsa akwa abụọ. Torsional shiee ụdị nchara Ọdịdị bolt, site a bolt, anut, ígwè Ọdịdị nnukwu hexagon bolt a washer mejupụtara.