DONGSHAO waa soo saaraha iyo alaab-qeybiyaha caanka ah ee Shiinaha oo leh khibrad sanado ah oo ku takhasusay wax soo saarka Indhaha Bolts. Waxaan rajeyneynaa inaan xiriir ganacsi la sameyno.
Hebei Dongshao Fastener Manufacturing Co., Ltd. waa alaab-qeybiye caan ah oo soo saara boolal indhaha gudaha Shiinaha.
Boorarka Indhaha ee ay soo saartay shirkadu waxay leeyihiin sifooyinka soo socda: Dhererka la isku hagaajin karo, waa la ballaarin karaa oo la hagaajin karaa iyadoo loo eegayo baahida, oo ku habboon hagaajinta cabbirka kala duwan; Si adag oo deggan, si fiican ayaa loo hagaajin karaa laba qaybood, oo leh awood xoog leh; fududahay in la rakibo, waxaa lagu rakibi karaa qalab ama qalab koronto, oo ku habboon noocyo kala duwan oo mashiinno, maraakiib, marawaxadaha iyo warshadaha kale.
Dalka Shiinaha, boolal-is-dabiiciga ah waxay raacaan heerka GB/T798-88, kaas oo ah dalool la safeeyey oo leh dusha siman oo siman iyo saxnaanta dunta sare. Thread specifications are usually M6 to M64. Intaa waxaa dheer, boolalka Indhuhu waxay raacaan heerka DIN444, kaas oo sidoo kale ah boodh la safeeyey, laakiin sifooyinka gaarka ah laguma bixiyo natiijooyinka raadinta.
Bolts waxaa lagu heli karaa agabyo kala duwan, oo ay ku jiraan Q235, 45#, 40Cr, 35CrMoA, birta 304 iyo birta 316, si ay ula qabsadaan jawi shaqo oo kala duwan iyo shuruudaha xoogga. Daawaynta dusha sare waxa kale oo ay leedahay doorashooyin kala duwan, sida galvanizing dip kulul, xuubka osmotic, dahaarka cad, dajinta midabka iyo tallaabooyinka kale ee ka hortagga daxalka.
| (mm) | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 | M27 | M30 | M33 | M36 | M39 |
| P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 |
| d1 daq | 5.070 | 6.070 | 8.080 | 10.080 | 12.095 | 16.095 | 18.095 | 22.110 | 24.110 | 27.110 | 30.110 | 32.120 | 35.120 |
| d1 max | 5.190 | 6.190 | 8.230 | 10.230 | 12.275 | 16.275 | 18.275 | 22.320 | 24.320 | 27.320 | 30.320 | 32.370 | 35.370 |
| dk max | 12 | 14 | 18 | 20 | 25 | 32 | 40 | 45 | 50 | 55 | 60 | 65 | 70 |
| dk min | 11.57 | 13.57 | 17.57 | 19.48 | 24.48 | 31.38 | 39.38 | 44.38 | 49.38 | 54.26 | 59.26 | 64.26 | 69.26 |
| r max | 4.0 | 6.0 | 6.0 | 6.0 | 9.0 | 9.0 | 9.0 | 15.0 | 15.0 | 15.0 | 22.4 | 22.4 | 22.4 |
| r min | 2.0 | 3.0 | 3.0 | 3.0 | 4.5 | 4.5 | 4.5 | 7.5 | 7.5 | 7.5 | 12.8 | 12.8 | 12.8 |
| max | 8 | 9 | 11 | 14 | 17 | 19 | 24 | 28 | 30 | 34 | 38 | 41 | 46 |
| s min | 7.42 | 8.42 | 10.3 | 13.3 | 16.3 | 18.16 | 23.16 | 27.16 | 29.16 | 33 | 37 | 40 | 45 |