1. npe
Cylindrical taub hau hexagon socket taub hau screws, tseem hu ua hexagon socket taub hau bolts, khob taub hau screws, thiab hexagon socket taub hau screws, muaj ntau lub npe, tab sis lawv txhais tau tib yam. Feem ntau siv hexagon socket taub hau screws suav nrog qib 4.8, qib 8.8, qib 10.9, thiab qib 12.9. Kuj hu ua hexagon socket screws, tseem hu ua hexagon socket bolts. Lub taub hau yog lub taub hau hexagonal lossis lub taub hau cylindrical.

2. Khoom siv
Carbon steel thiab stainless hlau.
Carbon steel hex socket taub hau screws muaj cov yam ntxwv ntawm lub zog siab thiab tus nqi qis, thiab yog ib qho kev lag luam thiab siv tau yooj yim. Nws yog siv nyob rau hauv qee qhov chaw, xws li cov khoom siv qis qis, cov khoom siv niaj hnub, rooj tog zaum, tsev ntoo, tsheb kauj vab, maus taus, thiab lwm yam.
Stainless hlau muaj cov yam ntxwv ntawm corrosion kuj, kub tsis kam thiab zoo toughness, thiab feem ntau yog siv los ua high-thov screws thiab ceev. Stainless hlau hex socket screws yog dav siv nyob rau hauv cov khoom sib txuas hauv kev lag luam tshuaj, khoom noj khoom haus thiab lwm yam lag luam, nrog rau cov khoom siv tshuaj, khoom siv hluav taws xob thiab lwm yam kev lag luam. Vim nws muaj zog tiv thaiv oxidation thiab tiv thaiv corrosion, nws tsis yooj yim oxidized thiab xeb los ntawm ib puag ncig, yog li nws tuaj yeem hloov mus rau qhov chaw hnyav.

3. Specifications thiab hom

Lub teb chaws tus qauv ntawm hexagonal socket taub hau screws yog GB70-1985. Muaj ntau yam specifications thiab ntau thiab tsawg. Cov kev qhia tshwj xeeb thiab cov qauv siv feem ntau yog 3 * 8, 3 * 10, 3 * 12, 3 * 16, 3 * 20, 3 * 25, 3 * 30, 3 * 45, 4 * 8, 4 * 10, 4 * 12 4 * 16, 4 * 20, 4 * 25, 4 * 30, 4 * 35, 4 * 45, 5 * 10, 5 * 12, 5 * 16, 5 * 20, 5 * 25, 6 * 12, 6 * 14, 6 * 16, 6 * 25, 8 * 14, 8 * 16, 8 * 20, 8 * 25, 8 * 30, 8 * 35, 8 * 40, thiab lwm yam.

4. Hardness
Hexagon socket bolts raug cais raws li qhov nyuaj ntawm cov ntsia hlau xaim, lub zog tensile, lub zog tawm los, thiab lwm yam. Cov khoom siv sib txawv yuav tsum muaj cov qib sib txawv ntawm cov hexagon socket bolts kom haum rau lawv. Tag nrho cov hexagon socket bolts muaj cov qib hauv qab no:
Hexagon socket taub hau bolts tau muab faib ua qhov zoo tib yam thiab muaj zog muaj zog raws li lawv cov qib zog. Ordinary hexagon socket bolts xa mus rau qib 4.8, thiab lub zog siab hexagon socket bolts xa mus rau qib 8.8 lossis siab dua, suav nrog qib 10.9 thiab 12.9. Chav Kawm 12.9 hexagon socket taub hau bolts feem ntau xa mus rau knurled, roj-stained dub hex socket taub hau khob taub hau screws.
Cov qib kev ua tau zoo ntawm hexagon socket bolts siv rau kev sib txuas steel qauv tau muab faib ua ntau tshaj 10 qib, suav nrog 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, thiab 12.9. Ntawm lawv, bolts ntawm qib 8.8 thiab siab dua yog ua los ntawm cov hlau tsis tshua muaj hlau lossis cov pa roj carbon nruab nrab. Tom qab kev kho cua sov (quenching thiab tempering), lawv feem ntau hu ua lub zog muaj zog bolts, thiab tus so feem ntau hu ua bolts zoo tib yam. Daim ntawv qhia qib qib bolt muaj ob feem ntawm cov lej, uas sawv cev rau tus nqi nominal tensile lub zog thiab cov txiaj ntsig lub zog piv ntawm cov khoom siv ntsia liaj qhov rooj.
cov