Txawm hais tias txhua tus neeg tuaj yeem pom qhov sib txawv ntawm cov ntsia hlau, txiv ntseej, bolts thiab ntxhua khaub ncaws, peb tsis paub meej txog ntau hom uas muaj nyob thiab lawv hu ua dab tsi. Cov lus ntawm cov ntsia hlau yog ib qho yooj yim thaum koj nkag siab tias cov screws raug cais li cas. Nrog rau qhov kev paub no, xaj cov khoom me me los ntawm ib ntus, yuav yooj yim npaum li nws tuaj yeem tau txais.
Hom taub hau
Hom Screw lub taub hau tuaj yeem raug cais raws li:
- Pav ca
- Pan
- Oval
- Hloov
- Phab ntsa qhuav
- Hex washer (ib lub tshuab ntxhua khaub ncaws uas txuas mus rau sab nraud)
Koj yuav tau pom los yog siv cov screws qee zaum thaum koj ua haujlwm lossis thaum koj tau kho lub rooj zaum hauv tsev lossis chaw ua haujlwm.
Xov hom
Raws li hom xov, screws tuaj yeem faib ua:
- Cov ntawv hlau, uas yog zinc plated thiab muaj cov ntsiab lus ntse heev
- Sharp point drywall; drywall screws tuaj yeem yog qhov taw tes ntse lossis tus kheej tho
- Tshuab screws, uas muaj nyob rau hauv txawv lub taub hau duab thiab tsav style.
- Masonry screws nkag mus masonry - cib, pob zeb los yog hollow thaiv, thiab feem ntau yog siv rau phab ntsa muab faib brackets, hluav taws xob hlws ris thawv thiab awning brackets.
- Ntoo ntsia hlau uas feem ntau yog siv rau kev txuas cov tub rau khoom rau cov substrates, thiab nws qhov ntev ntev muaj qhov tuav ruaj khov thaum ntsia kom raug.
- Kev xyaum ua tus kheejsheet hlau screwsmuab ib lub laum thiab ntsia hlau rau hauv ib chav tsev los laum lawv tus kheej lub qhov, txiav los yog daim ntawv mating threads, thiab ua tiav fastening nyob rau hauv ib lub lag luam.
- Self-tapping tshuab screws nrog cross-cuts uas tso cai rau lawv mus kais lawv tus kheej threads nyob rau hauv hlau
Tsav hom
Nyob ntawm cov qauv tsav, screws tuaj yeem sib txawv rau hauv:
- Phillips
- Slotted
- Hex
- Spanner Tamperproof, uas yog tsim los ntawm corrosion-resistant stainless hlau thiab muaj kev ruaj ntseg zoo dua muab qhov tseeb tias lawv tsis tuaj yeem raug tshem tawm yam tsis muaj qhov sib txuam spanner taub hau ntsia hlau.
- Square tsav
Ntsuas cov ntsia hlau ntev
Screw ntev yog ntsuas los ntawm qhov chaw ntawm cov khoom siv saum npoo yog suav tias yog, mus rau qhov kawg ntawm cov ntsia hlau. Rau cov fasteners uas nws lub taub hau feem ntau zaum saum npoo av, ntsuas los ntawm ncaj qha hauv qab lub taub hau mus rau qhov kawg ntawm lub fastener. Rau ib qho kev sib tsoo fastener, xws li lub taub hau tiaj tus, ntsuas los ntawm qhov taw tes ntawm lub taub hau qhov chaw ntawm cov khoom siv, mus rau qhov kawg ntawm cov ntsia hlau.
Nomenclature
Thaum txiav txim ntau hom screws, lub nomenclature yog raws li nram no:
CAT No. 6X114FHPSMS
CAT No. 8X34 HWM
