Screws feem ntau hu ua "screws" nrog sab nraud threads.
Qhov zoo ntawm lub txiv ntoo yog feem ntau hexagonal, thiab lub puab qhov yog internally threaded. Nws yog siv los piv cov ntsia tho thiab kaw qhov chaw.
Lub txiv ntoo yog ib lub npe thiab tus qauv yuav tsum raug hu ua "nut".
Lub taub hau ntawm lub pluaj yog feem ntau hexagonal thiab qia tau sab nraud threads. Muaj tag nrho cov nyom, ib nrab silk, nws yog qhov zoo tshaj plaws raws li txoj cai hauv lub teb chaws.
Cov ntsia hlau yog me me, lub taub hau muaj lub taub hau qaum, lub khob, thiab lwm yam, thiab lub qia muaj sab nrauv.
Lub plhaub yuav tsum yog hu ua "double stud", nrog sab nrauv ntawm ob qho tag nrho, thiab nruab nrab yog feem ntau yog txhuam polished. Qhov ntev kawg ntawm cov xov yog siv los txuas rau qhov sib sib zog nqus qhov thiab luv luv ib yog txuas nrog lub txiv ntoo.
Screws yog ib qho lus tseemceeb.
Cov lus qhia yuav tsum yog bolts, ntsia hlau, thiab lub hau ntswj.
Bolts thiab screws yog round elongated khoom nrog sib npaug sib nraus threads.
Lub bolts yog ntawm lub tob hau cylindrical duab; tus ntsia hlau yog taw tes rau ntawm pem hauv ntej zoo li cov rau tes.
Bolts yuav tsum siv nrog lub hau hau los yog cov khoom uas tau muab pov tseg.
Cov ntsia hlau yog siv rau cov khoom ntim khoom los yog thinner, thiab siv lawv tus kheej cov voj voos coj los siv ua ntej.
Cov xov nyob rau hauv lub bolts yog ntiav thiab tsis muaj ntse sawv; cov xov nyob rau hauv lub screws yog sharper thiab lub xov yog tob, uas facilitates drilling rau hauv lub khoom.
Feem ntau bolts thiab screws xav tau ib lub cuab yeej yooj yim uas feem ntau yog siv - ib lub cav.