Txhais thiab siv cov screws

Screws yog cov cuab yeej uas siv cov ntsiab lus ntawm lub cev thiab kev ua lej ntawm cov khoom sib hloov ntawm lub zog thiab cov khoom sib txhuam kom maj mam muab cov khoom siv maj mam. Nws yog ib lo lus dav dav rau cov fasteners, xws li cov khoom siv hluav taws xob niaj hnub siv rau cov duab hluav taws xob, thiab cov khoom siv hluav taws xob, rooj tog zaum, rooj tog zaum thiab lwm yam.
Screws feem ntau muaj lub taub hau thiab ntsia hlau. Lub taub hau muaj ntau yam duab, xws li puag ncig, hexagonal, square, thiab lwm yam, thiab cov ntsia hlau muaj xov. Cov xov ntawm screws yog feem ntau zoo thiab tuaj yeem faib ua coarse thiab zoo xov. Cov xov xov ntawm cov ntxhib xov cov screws yog qhov haum rau cov kev sib txuas nrawm nrawm; Cov xov cov xov paj ntawm cov xov paj zoo me me, nrog kev sib cais zoo dua qub, thiab feem ntau siv tau raws li kev yuav tsum tau hloov kho thiab ua kom loj dua.

Hom Screws
Muaj ntau ntau hom screws, uas tuaj yeem faib ua ntau hom raws li lawv siv thiab cov duab:

Ntoo Screws: Muaj ib lub taub hau taw rau pem hauv ntej kawg thiab lub suab loj dua, uas yog siv rau cov ntoo ntoo thiab yas.
Tshuab ntsia hlau (tshuab ntsia hlau (tshuab ntsia hlau): Tiaj taub hau nyob rau sab xub ntiag, suab me thiab niaj hnub, feem ntau yog siv los ua kom nrawm thiab siv lub tshuab qhov chaw.
Tus kheej tapping ntsia hlau: tuaj yeem ua kom tau ncaj qha thiab tig mus rau ntawm lub rooj sib txoos hauv ib kauj ruam.
Daim duab peb sab Xov Xwm: muaj kab lus cua, haum rau kev sib txuas uas yuav tsum muaj zog dua.
Keeb kwm keeb kwm yav dhau los ntawm Screws
Keeb kwm ntawm screws tuaj yeem raug taug qab mus rau lub sijhawm puag thaum ub. Greek Mathematician arsytas tau qhia txog lub hauv paus ntsiab lus ntawm screws hauv thawj 100 xyoo AD. Hauv Nrab Hnub nyoog, cov ntsia hlau thiab cov ntsia hlau tau siv, tab sis lawv tau dav ua lag luam hauv lub xyoo pua 18th. Ua ntej nruab nrab -19}}}}}}}}}}, tus pkts lossis rivets tau feem ntau siv rau kev kho cov nkoj hauv nkoj. Nws tsis yog kom txog rau lub tshuab cov cuab yeej tuaj yeem loj-tsim screws tias cov hlau ntsia hlau tau ua cov fasteners feem ntau.