Bolts muaj ntau lub npe, thiab tib neeg tuaj yeem siv cov ntsiab lus sib txawv. Ib txhia hu lawv screws, ib txhia hu lawv bolts, thiab ib txhia hu lawv fasteners. Txawm hais tias muaj ntau lub npe, lawv txhua tus txhais tau tib yam: bolts. Bolt yog lub ntsiab lus dav dav rau fasteners. Lub ntsia liaj qhov rooj yog ib qho cuab yeej siv lub cev thiab lej cov qauv ntawm cov dav hlau inclined, kev sib hloov ntawm lub voj voog, thiab kev sib txhuam kom maj mam zawm cov khoom thiab tshuab qhov chaw.
Bolts yog qhov tseem ceeb hauv lub neej niaj hnub thiab kev tsim khoom lag luam; lawv feem ntau hu ua "mov ntawm kev lag luam." Qhov no qhia tau hais tias siv bolts dav npaum li cas. Bolts yog siv rau hauv: cov khoom siv hluav taws xob, cov khoom siv tshuab, cov khoom siv digital, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov nkoj, tsheb, cov dej txuag dej, thiab txawm tias kev sim tshuaj. Nyob rau hauv luv luv, bolts yog siv nyob rau hauv ntau qhov chaw, tshwj xeeb tshaj yog cov precision bolts siv nyob rau hauv cov khoom digital. Cov ntsia hlau me me yog siv hauv DVDs, koob yees duab, tsom iav, saib, thiab khoom siv hluav taws xob; bolts dav siv hauv TV, khoom siv hluav taws xob, khoom siv suab paj nruag, thiab rooj tog zaum; loj bolts thiab ceev yog siv nyob rau hauv engineering, kev tsim kho, thiab txuas hniav; thiab ntau qhov ntau thiab tsawg ntawm bolts yog siv rau hauv cov khoom siv thauj mus los, dav hlau, tsheb ciav hlau, thiab tsheb. Bolts ua lub luag haujlwm tseem ceeb hauv kev lag luam, thiab ntev npaum li kev lag luam muaj nyob hauv ntiaj teb, kev ua haujlwm ntawm bolts yuav tseem ceeb.
