Bolts yog tsim los ntawm cov ntaub ntawv sib txawv, xov hom, txheej txheej, ntau chav kawm haum, thiab ntau qib. Bolt qib qhia lub zog ntawm lub ntsia liaj qhov rooj, uas yog ib qho tseem ceeb thaum xaiv ib lub fastener kom koj thiaj paub tseeb tias lub ntsia liaj qhov rooj muaj zog txaus rau txoj hauj lwm.
Cov khoom siv los tsim cov ntsia liaj qhov rooj thiab cov khoom siv ntawm cov ntsia liaj qhov rooj txiav txim siab qib. Hlau fasteners feem ntau muaj nyob rau hauv plaub qib uas tau tawg rau hauv cov pawg hauv qab no: 2, 5, 8 thiab 18-8 stainless (feem ntau hu ua alloy steel). Qib 8 yog qhov nyuaj tshaj, Qib 5 yog nruab nrab, thiab Qib 2 yog qhov softest.
Nov yog cov lus qhia ceev rau kev txheeb xyuas cov qhab nia thiab cov ntaub ntawv, yog li koj tuaj yeem paub tseeb tias qhov sib tw thiab qib rau koj qhov project yuav tsum:
Qib 2
Qhov no yog qib feem ntau ntawm steel fastener thiab yog qhov tsawg tshaj plaws. Qib 2 bolts tsis muaj lub taub hau cim, txawm hais tias qee zaum muaj cov chaw tsim khoom lag luam. Qib no ntawm bolt yog tsim los ntawm cov pa roj carbon tsawg lossis nruab nrab.
Qib 5
Ua los ntawm nruab nrab carbon steel uas yog quenched thiab tempered rau ntxiv dag zog, qib no yog cov feem ntau bolt pom nyob rau hauv daim ntawv thov tsheb. Qib 5 bolts muaj peb qhov sib npaug ntawm cov kab radial ntawm lub taub hau.
Qib 8
Qib no ntawm lub ntsia liaj qhov rooj yog ua los ntawm nruab nrab carbon alloy steel uas tau quenched thiab tempered kom nws harden ntau tshaj li qib 5. Lawv muaj zog dua thiab siv nyob rau hauv ntau xav tau daim ntawv thov xws li automotive suspensions. Koj tuaj yeem txheeb xyuas qib 8 bolts los ntawm 6 qhov sib npaug ntawm cov kab radial ntawm lub taub hau.
Qib 18-8 Stainless (Alloy Steel)
Cov bolts siab zog no yog tsim los ntawm cov hlau alloy uas muaj qhov nruab nrab ntawm 18 feem pua chromium thiab 8 feem pua nickel, uas ua rau lawv muaj zog heev tab sis nkig heev. Lawv tau txais kev kho cua sov ntxiv thiab feem ntau tsis plated, uas ua rau lawv dull dub tiav. Cov cim tuaj yeem sib txawv ntawm cov bolts.
Qib 2, 5, thiab 8 feem ntau yog plated nrog nyiaj lossis daj zinc txheej lossis galvanized los tiv thaiv corrosion.
Qeb cov khoom yuav tsum tau sib npaug - piv txwv li, Qib 5 txiv ntseej nrog Qib 5 bolts - ua rau lawv ua hauj lwm ua ke nrog tib theem ntawm hardness, yog li insuring zoo ib yam zog thiab ib tug zoo dua, txhim khu kev qha kev twb kev txuas.