Lub viav vias yog qhov khoom loj tshaj plaws ntawm tib neeg quavntsej raws li daim ntawv thov.
Lub viav vias kuj yog ib hom viav vias. Muaj ntau hom screws, seb nws yog ib qho me me ntsia hlau rau tsom iav los yog ib tus loj ntsia hlau rau heavy-duty hnyav-hluav taws xob yam xws li tshuab. Lub hom phiaj tseem ceeb tshaj plaws yog siv cov khoom siv siab ua kom tiav ib qho, yog tias kev siv cov hniav thiab cov hniav feem ntau tshwm sim Txaus tsis ncav, muab xauv nrawm rau lub hau tawm, los yog cov hniav tsis zoo tsis zoo los ua kom tau raws li cov kev siv, yog txhua yam teeb meem tseeb. Screws yog "ntau cov khoom" thiab tsis yog cov tsim cov artworks. Hauv huab hwm coj ntau, lawv npaj siab los muab cov neeg tau txais kev pab cuam nrog cov cuab yeej ua ke, ruaj ntseg zoo thiab nrov hnav. Qhov tseeb ntawm cov kev ntsuas yog feem ntau yog 6g (qib thib 2, Tebchaws Asmesliskas "IFI" yog 2A cov hniav), thiab cov ntsia hlau siv hauv kev tsim kho yog 8g (qib 3, "IFI" yog 1A hniav). Tus nqi ntawm screws yog ib qho tseem ceeb heev. Muaj cov piv txwv nyob rau hauv lub ntiaj teb ntawm bankruptcies tshwm sim los ntawm pluag screw zoo. Muaj cov piv txwv ntawm aircraft sib tsoo thiab tsheb subversion vim kev tsis quav ntsev.
Tus nqi ntawm tooj liab ntses thiab lawv qhov tseem ceeb, ib tug zoo zoo ntsia hlau, yuav tsis poob rau ib puas xyoo. Ib tus neeg pluag zoo tsis zoo yog hais txog lub neej.