Screws yog ib yam uas peb pom txhua hnub. Cov neeg uas xyuam xim rau kev nthuav dav feem ntau xav tsis thoob tias cov khoom siv lawv cov cuab yeej lossis cov cuab yeej yog ua los ntawm, thiab cov khoom siv raw cov ntsia hlau siv los tsim cov screws xav tau hauv khw.
Screws yog ib yam uas peb pom txhua hnub. Cov neeg uas xyuam xim rau kev nthuav dav feem ntau xav tsis thoob tias cov khoom siv lawv cov cuab yeej lossis cov cuab yeej yog ua los ntawm, thiab cov khoom siv raw cov ntsia hlau siv los tsim cov screws xav tau hauv khw. Cov lus nug no tshwm sim vim tias tsuas yog los ntawm kev nkag siab qee yam hauv kev nthuav dav peb tuaj yeem siv nws zoo dua thiab tsis txhob muaj teeb meem thaum siv.
Qhov tseeb, kev ua tib zoo kawm ntawm kev ua lag luam qhia tias cov ntsia hlau feem ntau yog tsim los ntawm peb cov khoom siv raw: carbon steel, stainless hlau, thiab tooj liab. Vim lawv cov khoom sib txawv, cov ntsia hlau ua los ntawm cov hlau no muaj cov yam ntxwv sib txawv. Kev nkag siab txog cov ntaub ntawv raw no muab kev taw qhia rau peb siv; los ntawm kev nrhiav qhov chaw, teeb meem thiab kev pheej hmoo tuaj yeem zam tau yooj yim.
Hauv cov pa roj carbon steel, feem ntau muaj cov ncauj lus kom ntxaws ntxiv raws li cov ntsiab lus carbon. Muaj cov pa roj carbon nruab nrab, cov pa roj carbon siab, thiab lwm hom alloy carbon steel, txhua tus nrog nws tus kheej specifications thiab designations. Cov pa roj carbon ntau yog tsis siv dav hauv kev ua lag luam niaj hnub no thiab xyaum tsis siv.
Tom qab ntawd muaj stainless hlau screws. Txhua tus paub cov khoom ntawm cov hlau tsis muaj steel: kub ua hauj, corrosion kuj, thiab haum lub zog, uas yog heev pab tau rau vuam.
Thaum kawg, muaj tooj liab screws, feem ntau yog ua los ntawm tooj dag thiab tshiab tooj liab alloys.
Cov no yog cov khoom siv raw rau cov ntsia hlau tam sim no pom hauv khw. Txhua tus muaj ntau yam kev siv, thiab peb yuav tsum xaiv raws li qhov xav tau sib txawv; qhov no yog qhov kev xaiv ntse xwb.
Rau nws tus kheej-drilling screws, hexagonal self-drilling screws, thiab ib tug ua tiav ntau yam ntawm tus kheej-drilling screws, mus saib Hebei Wotu Fastener Manufacturing Co., Ltd.
