1. Xov Hom: Mechanical vs. Self-Tapping
Screws tuaj nyob rau hauv ob hom xov tseem ceeb: mechanical thiab self-tapping.Mechanical hniav, feem ntau abbreviated li "M" nyob rau hauv kev lag luam, yog siv rau tapping txiv ntseej los yog cov xov sab hauv.Feem ntau ncaj nraim nrog tus Tsov tus tw tiaj tus, lawv lub hom phiaj tseem ceeb yog hlau fastening lossis kev ruaj ntseg tshuab qhov chaw.Ntawm qhov tod tes, tus kheej tapping screws feature daim duab peb sab lossis cross-shaped semi-circular triangular hniav.Paub tias nws tus kheej-locking screws, lawv cov xov zoo tsim tau tso cai rau kev nkag tau yooj yim dua yam tsis tas yuav tsum muaj lub qhov taub ua ntej.
2. Lub taub hau tsim thiab Profile sib txawv
Qhov tseem ceeb tshaj qhov sib txawv ntawm tus kheej tapping screws thiab zoo tib yam screws nyob rau hauv lawv lub taub hau tsim thiab xov profile.Ordinary screws muaj lub taub hau tiaj tus, thaum tus kheej tapping screws feature lub taub hau taw.Tsis tas li ntawd, txoj kab uas hla ntawm tus kheej tapping screws maj mam hloov ntawm qhov kawg mus rau txoj kab uas hla ib txwm, qhov zoo tib yam screws tuav ib txoj kab uas hla, feem ntau nrog lub chamfer me me thaum kawg.
Ntxiv mus, tus hniav profile kaum plays lub luag haujlwm tseem ceeb.Ordinary screws muaj lub kaum sab xis ntawm tus hniav ntawm 60 °, muab lub zog tuav zoo thiab ruaj khov.Hauv qhov sib piv, tus kheej tapping screws muaj lub kaum sab xis ntawm tus hniav qis dua 60 °, ua rau lawv tsim lawv tus kheej cov xov thaum lawv nkag mus rau cov ntaub ntawv xws li ntoo, yas, lossis nyias hlau.
3. Kev siv tau thiab kev xav txog kev siv
Qhov sib txawv ntawm tus kheej tapping screws thiab zoo tib yam screws txiav txim siab lawv cov kev siv tshwj xeeb thiab kev xav txog kev siv.Cov ntsia hlau loj feem ntau yog ua haujlwm nyob rau hauv cov xwm txheej uas qhov kev sib raug zoo thiab kev ruaj ntseg yog qhov tseem ceeb, xws li kev sib sau cov khoom siv hluav taws xob zoo lossis kev ruaj ntseg cov khoom siv tshuab.
Self-tapping screws, ntawm qhov tod tes, tshwj xeeb yog tsim los tsim lawv tus kheej mating threads raws li lawv tau tsav mus rau hauv cov ntaub ntawv softer, tshem tawm qhov xav tau rau qhov pre-drilled qhov.Lawv pom kev siv dav hauv cov haujlwm ua haujlwm ntoo, txuas cov khoom siv rau phab ntsa qhuav, sib sau cov rooj tog, thiab txhim kho cov ntawv hlau vov tsev.
Nws yog ib qho tseem ceeb kom nco ntsoov tias tus kheej tapping screws yuav tsis haum rau txhua daim ntawv thov.Thaum ua hauj lwm nrog cov ntaub ntawv nyuaj xws li stainless hlau los yog alloys, pre-drilled qhov feem ntau yog tsim nyog los xyuas kom meej qhov zoo insertion tsis ua puas lub ntsia hlau los yog cov khoom.
Post lub sij hawm: Sep-18-2023