Bolts thiab screws yog ob hom fasteners siv los koom ob lossis ntau yam khoom ua ke, tab sis lawv muaj qee qhov sib txawv tseem ceeb:
Bolts:
Externally threaded:Bolts feem ntau muaj cov xov sab nraud raws lawv qhov ntev.
Txiv ntseej:Bolts yog siv ua ke nrog cov txiv ntoo kom ruaj ntseg cov khoom ua ke.
Kev siv:Bolts feem ntau yog siv rau hauv daim ntawv thov uas yuav tsum tau disassembly los yog qhov chaw sib koom yuav tsum tau nruj nruj los yog kho ntau zaus.
Hom:Hom bolts muaj xws li hex bolts, carriage bolts, thiab qhov muag bolts.
Screws:
Internally threaded:Screws muaj threads ntawm lawv sab nrauv thiab muab tso rau hauv pre-threaded qhov los yog cov ntaub ntawv.
Tsis xav tau txiv ntseej:Screws tsis xav tau txiv ntseej; lawv tsim lawv tus kheej hauv xov raws li lawv tau tsav mus rau hauv cov khoom.
Kev siv:Cov ntsia hlau feem ntau yog siv los khi cov khoom rau cov khoom xws li ntoo, hlau, lossis yas.
Hom:Screws tuaj nyob rau hauv ntau hom, nrog rau cov ntoo screws, tshuab screws, self-tapping screws, thiab drywall screws.
Qhov txawv tseem ceeb:
Xov Direction:Bolts feem ntau muaj cov xov sab xis, thaum cov ntsia hlau tuaj yeem muaj cov xov sab xis lossis sab laug.
Hom Lub taub hau:Bolts feem ntau muaj lub taub hau loj dua tsim los tig nrog lub dab teg lossis lub qhov (socket), thaum cov ntsia hlau muaj lub taub hau me me tsim los tsav nrog lub hau ntswj lossis lub hwj chim.
Daim ntawv thov:Bolts feem ntau yog siv rau hauv cov qauv siv los yog qhov chaw hnyav hnyav, thaum cov ntsia hlau feem ntau siv hauv kev ua haujlwm ntoo, kev tsim kho, thiab kev sib dhos.
Khaws cia:Bolts yuav tsum tau ceev kom ruaj ntseg cov khoom ua ke, thaum screws tsim lawv tus kheej xov thiab tsis tas yuav tsum tau kho vajtse ntxiv.
Hauv cov ntsiab lus, thaum ob qho tib si bolts thiab screws ua haujlwm rau lub hom phiaj ntawm kev sib txuas cov khoom ua ke, lawv muaj cov qauv sib txawv, kev siv, thiab kev siv. Bolts feem ntau xav tau cov txiv ntseej thiab siv rau hauv cov qauv siv, thaum cov ntsia hlau yog cov xov ntawm tus kheej thiab feem ntau siv hauv kev ua haujlwm ntoo thiab kev sib dhos.
