
2026-06-23
Ho khetha thepa e tala e nepahetseng ke motheo oa ho hlahisa liboutu tse matla, li-screws, liboutu tsa hex, le liboutu. ISO 898-1 e hlalosa litlelase tsa thepa ea mochini bakeng sa li-fasteners tsa metric - hangata Kereiti ea 8.8, Kereiti ea 10.9, le Kereiti ea 12.9. Sehlopha se seng le se seng se totobatsa matla a fokolang, matla a tlhahiso, le ho thatafala hoo feela tšepe e khethiloeng ka morero, e kopantsoeng le phekolo e nepahetseng ea mocheso, e ka finyellang ka mokhoa o tsitsitseng.
Sehlopha sa 8.8 Bolts & Screws - Matla a Bohareng a Phahameng
Li-fasteners tsa Kereiti ea 8.8 (matla a fokolang a 800 MPa, karo-karolelano ea lihlahisoa 0.80) ke li-fasteners tse sebelisoang ka kakaretso lefatšeng ka bophara. Ba koahela liboutu tsa hex, likurufu tsa hex cap, liboutu tsa kariki, liboutu tsa stud, le likurufu tse khoele ka botlalo bakeng sa kaho ea tšepe, likopano tsa likoloi le metjhini e akaretsang.
Lisebelisoa tse khothalelitsoeng
Phekolo ea Mocheso & Likopo
Quenching & Tempering (Q&T). Mofuta o tloaelehileng oa boima: 22-32 HRC. Lisebelisoa: likhokahano tsa tšepe ea sebopeho, chassis ea likoloi, mechini e akaretsang, manonyeletso a nang le mapheo, likhokahano tsa lehong ho ea ho tšepe.
Sehlopha sa 10.9 Bolts & Screws - Matla a Phahameng
Liboutu le likurufu tsa Kereiti ea 10.9 li fana ka matla a fokolang a 1,040 MPa. Li hlakisitsoe hohle moo likhokahano tse momahaneng, tse phahameng-tlapang li hlokahalang - ho tloha ho lienjine tsa makoloi ho isa ho thepa e boima ea lefatše. Mefuta e tloaelehileng ea lihlahisoa e kenyelletsa li-screws tsa socket head cap, liboutu tsa hex tse flanged, le liboutu tse matla haholo.
Lisebelisoa tse khothalelitsoeng
Phekolo ea Mocheso & Likopo
Quenching & Tempering (Q&T). Mofuta o tloaelehileng oa boima: 32-39 HRC. Lits'ebetso: liboutu tse holisang enjene, lifasefate tse emisitsoeng le li-drivetrain, liboutu tsa tora ea moea oa turbine, likhokahano tse boima tsa meralo.
Grade 12.9 Bolts & Screws — Ultra-High Strength
Kereiti ea 12.9 ke sehlopha sa thepa se emeng se phahameng ka ho fetesisa bakeng sa li-fasteners tsa metric (matla a fokolang a 1,220 MPa). Matla a phahameng haholo a hloka tšepe ea alloy e nepahetseng e nang le k'hemistri e laoloang ka thata. Li-fasteners - haholo-holo li-screws tsa socket head cap le liboutu tse khethehileng tsa indasteri - li sebelisoa hohle moo libaka tsa polokeho le bophelo ba mokhathala li ke keng tsa buisanoa.
Lisebelisoa tse khothalelitsoeng
Phekolo ea Mocheso & Likopo
Quenching & Tempering (Q&T) e nang le taolo e thata ea boima (39–44 HRC). Lisebelisoa: liboutu tsa "disk brake caliper", lisebelisoa tsa mochini o nepahetseng, li-ankora tsa bohlokoa tsa sebopeho, li-screws tsa socket head cap (DIN 912 / ISO 4762), li-fasteners tse khethehileng tsa indasteri.
Quick Reference: Grade vs. Recommended Material
| Kereiti | Min. Tensile Matla | Lisebelisoa tse khothalelitsoeng | Mefuta e Tloaelehileng ea Lihlahisoa | Kalafo e Tloaelehileng ea Mocheso |
| 8.8 | 800 MPa | 35# / 45# Carbon Steel 40Cr Alloy tšepe | Hex Bolt, Hex Cap Screw, Bolt ea koloi, Stud Bolt | Ho khutsisa & ho halefisa |
| 10.9 | 1,040 MPa | 40Cr, 35CrMo, 42CrMo SCM435 motsoako oa tšepe | Socket Cap Screw, Flanged Bolt, Stud Bolt | Ho khutsisa & ho halefisa |
| 12.9 | 1,220 MPa | 42CrMo4 / SCM440 35CrMoV Alloy tšepe | Socket Head Cap Screw, Industrial Fastener | Q&T (39–44 taolo ea HRC) |
Mabapi le Fujirui Metal — Professional Fastener Manufacturer & Exporter
Fujirui Metal e etsa le ho romela kantle litšepe tse nepahetseng tse kenyellelitsoeng liboutu tse matla haholo, likurufu tsa hex, likurufu tsa ho itšeha, liboutu, le lithupa tse nang le mahlakore a mabeli ho pholletsa le Kereiti ea 8.8, 10.9, le 12.9. Likhetho tsa kalafo ea bokaholimo: Dacromet, Ruspert, hot-dip galvanising, le zinc plating. Lihlahisoa tsohle li netefalitsoe ho latela maemo a ISO, DIN, le ASTM, 'me ho na le litifikeiti tse felletseng tsa tlhahlobo ea thepa (MTC).