Peb cov ASTM A307 nuts yog workhorses rau structural steel connections - tsim los khaws cov khoom lag luam yam tsis muaj teeb meem. Ua los ntawm low-carbon steel (tsis ntau tshaj 0.29% carbon, ib yam li ASTM A307 xav tau), lawv ua tau zoo hauv cov chaw uas xeb tsis yog teeb meem loj, xws li choj, transmission towers, thiab heavy machinery setups.
Peb ob yam finishes: dub oxide coated (per ASTM D769) rau kev tiv thaiv xeb thaum khaws cia, thiab zinc-plated (5-8μm txheej, ASTM B633) rau kev tiv thaiv zoo dua hauv damp cheeb tsam. Cov zinc plating dhau 300-teev salt spray test (ASTM A307 Nuts) with the only me surface rust, ua rau nws yog ib qho kev xaiv zoo rau garages lossis outdoor sheds.
Peb cov threading yog ua nrog precision: UNC threads (ASME B1.1) muaj Class 2B haum, yog li lawv screwed rau bolts smoothly yam tsis muaj sticking. Peb siv txias-forging rau cov txiv ntseej lub cev, uas ua rau lawv 20% zog dua li cast versions, thiab txhua lub nut tau xov gauge check ua pa shipping. Rau bulk xaj, peb yam lawv hauv reusable steel crates dividers los tiv thaiv xov puas.
Raws li ib tug Suav manufacturers nrog 13 xyoo supplying US siv thiab hardware stores, peb khiav 8 txiv ntseej-forming kab thiab 5 threading machines, tsim tawm 5,500 tons ib xyoo. Peb cov raw steel los ntawm mills nrog ISO 9001 certification, thiab txhua batch tau tshuaj xyuas (OES, raug rau 0.001%) kom cov khoom ASTM A307 qauv.
Peb khaws 800-1000 tons hauv tsev khaws khoom ntawm peb lub Qingdao warehouse, nrog ntau thiab tsawg los ntawm ¼" txog 2" thiab style xws li hex, square, thiab tis txiv ntseej. Cov khoom muag hloov tshiab hauv lub sijhawm tiag tiag ntawm peb lub vev xaib, thiab FOB Qingdao cov khoom xa tuaj rau hauv Tshuag ceev 3 hnub - yooj yim thaum koj cov neeg siv khoom xav tau restock ceev.
5% luv nqi ntawm kev txiav txim tshaj 80 tons ntxiv rau dawb galvanizing.
Peb lav: Yog hais tias ib qho qty ASTM A307 nut swm thaum ib txwm siv los tsis ua tau raws li ASME B18.2.2 dimensional standard, peb tuaj yeem xaiv nws hauv 5 hnub thiab lawv shipping. Peb kuj muab 25-hnub nqe xauv ntawm loj xaj, thiab cov neeg yuav rov qab tuaj yeem txaus siab rau ntxiv 2% luv nqi ntawm reorders hauv 2 hli.
ASTM A307 (covers carbon steel externally threaded fasteners, nrog matching nuts rau A307 bolts thiab ASTM A307 Nuts)
Carbon steel (low carbon content, feem ntau ≤ 0.29% C; tsim los ua compatible nrog A307 bolts rau balanced performance)
Companion nuts rau ASTM A307 carbon steel bolts, siv los khiav joints hauv light to moderate load applications
Mechanical Properties
Tensile Strength: Min. 55 ksi (379 MPa) (kom phim lub zog ntawm A307 bolts thiab tiv thaiv nut tsis ua hauj lwm bolt)
Hardness: Feem ntau 60–95 HRB (qis dua high-strength nuts rau ductility)
Xov Standards
Unified National Coarse (UNC) rau ASME B1.1 (sib piv A307 bolt threads)
Qhov ntau thiab tsawg: 1/4 "mus rau 4" (Imperial); compatible nrog bolt diameters hauv tib range
Hom/Styles
Hex nuts (feem ntau): 6-sided hexagonal shape rau wrench tightening
Optional styles: Heavy hex nuts (rau greater bearing surface) lossis slotted hex nuts (rau locking nrog cotter pins hauv qeeg)
Surface Finish
Plain (uncoated): economical rau hluav taws xob, indoor environments
Zinc-plated: rau improved corrosion resistance hauv mild outdoor lossis humid settings
Hot-dip galvanized: rau enhanced protection hauv harsh environments (xws li construction sites)
Applications
Paired nrog A307 bolts hauv construction (wood/light steel connections, concrete formwork)
Machinery assembly (light equipment, pumps)
Piping systems (non-high-pressure flanges)
General-purpose fastening qhov twg moderate strength thiab cost-efficiency yog qhov tseem ceeb
Key Features
Compatibility: Tsim los ua Ua haujlwm nrog A307 bolts rau sib npaug sib npaug zog (txiv ntseej yields me ntsis ua ntej bolt los tiv thaiv sudden tsis ua haujlwm)
Nqi-zoo: Tsawg carbon steel siv txo cov khoom siv nqi
Ib qho yooj yim installation: Standard hex tsim rau universal wrench siv
Cov lus nug nquag
Q: Koj puas muaj kev paub xa tawm mus rau peb lub teb chaws/lub voj voog?
A: Peb tau xa mus rau ntau tshaj 50 lub teb chaws, suav nrog US, EU, Southeast Asia, thiab Middle East. Peb paub txog cov kev cai ntshuam hauv zos.
Q: Koj puas tuaj yeem npaj qhov rooj rau qhov rooj xa khoom?
A: Yog, peb tuaj yeem npaj xa qhov rooj rau qhov rooj los ntawm peb cov freight forwarders, npog kev lis kev cai thiab kev thauj mus los zaum kawg rau koj qhov chaw nyob.
Q: Koj cov khoom tseem ceeb suav nrog cov khoom dab tsi?
A: Peb cov khoom tseem ceeb suav nrog carbon steel, stainless hlau, thiab hlau alloy, nrog kev tsom xam rau cov kav dej, flanges, thiab fittings.
