Powered by Made-in-China.com
ASTM A325 Bolt for Steel Structure Galvanized Heavy Hex Bolt Structural Bolts
US$0.01
100,000 Pieces
Sample price:US$0.10/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelType
Hexagon HeadModel NO.
HEAVY HEX BOLTConnection
Common BoltHead Style
HexagonalStandard
ASTMGrade
A325-1,A325m-1,A490-1,A490m-1Application
BuildingFinish
Hot GalvanizingCertification
Is09001Delivery Time
25daysMOQ
800kgsSample
FreeDurability
EnhancedTransport Package
25kg/Carton+PalletSpecification
M12-M36, 1/2"-1-1/2"Trademark
FASTOrigin
Ningbo, ZhejiangHS Code
7318151001Production Capacity
2500 Tons/MonthKey features
High Strength Grades: Available in ASTM A325 and A490 grades for superior structural integrity.
Durable Galvanized Finish: Hot dip galvanizing and other finishes ensure long-lasting corrosion resistance.
Wide Size Range: Sizes from M12 to M36 (1/2" to 1-1/2") to meet diverse structural needs.
OEM/ODM Support: Custom manufacturing services available for specific client requirements.
Strict Quality Control: Full inspection at every production link with MTC and mill certificates provided.
Manufacturer Direct: Direct factory supply from Ningbo with over 25 years of industry experience.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedNearest Port: Ningbo Port, Shanghai portAverage Response Time: ≤6.57h CertifiedTerms of Payment: LC, T/T, D/P CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR
AI-Powered supplier vetting
SummaryNingbo Zhonglian Fastener Manufacture Co., Ltd. is identified as a Chinese limited company operating in Zhejiang and producing construction fasteners, including bolts, nuts, screws, washers, and non-standard fasteners. The supplied information shows ISO9001:2015 certification and also references ISO14001, ISOEN14399CE, and ISOEN15048 approvals. Reported manufacturing resources include automatic cold-forging equipment, hot-forging lines, heat-treatment lines, and an inspection center. The company states that it serves international markets and maintains overseas service institutions, but the evidence does not fully establish current service performance. Production information is inconsistent across the slices regarding establishment date, employee count, plant area, and capacity, so scale should be verified. Customization capability is not explicitly demonstrated. Trade records identify buyers in the United Kingdom and Vietnam, but the number of documented transactions is limited.
Supplier typeThe supplier is classified as a combined business entity and limited company in China, with a stated manufacturing address in Zhejiang. Its products, manufacturing equipment, and description identify it as a fastener manufacturer rather than only a trading intermediary.
CertificationsThe supplier explicitly provides an ISO9001:2015 certificate. Its company description also references ISO9001, ISO14001, ISOEN14399CE, and ISOEN15048 approvals, indicating multiple quality, environmental, and product-related certifications or approvals.
After-Sales capabilityThe supplier states that it provides considerate service and has six domestic direct-sale offices plus overseas regional service institutions in Hungary, Dubai, Malaysia, and the UK. These statements support a service network, although no specific after-sales procedures, response standards, or performance evidence are provided.
Production capacityThe supplier reports nearly 100 automatic cold-forging machines, six hot-forging lines, four imported automatic mesh-belt heat-treatment lines, a professional inspection center, and monthly capacity of up to 2,500 tons. It also lists a broad range of fastener products and international standards, providing explicit evidence of substantial manufacturing capability.
Client casesTrade records associate the supplier with CYNTECH ANCHORS LTD in the UK and CÔNG TY TNHH CST INDUSTRIES VIỆT NAM in Vietnam, covering hex screws, hex nuts, and stainless-steel flat washers. These records demonstrate identifiable international buyer activity, but only a small number of transactions are shown.
Product Q&A
Q:What is the delivery time?
A:
Generally 30 to 45 days, depending on the order quantity.
Q:What are the payment terms?
A:
30% T/T in advance and 70% balance against B/L copy. For orders under $1000, 100% advance payment is suggested.
Q:Do you provide free samples?
A:
Yes, free samples are provided for standard fasteners. New customers pay express charges, while existing customers may have them covered.
Q:Are you a manufacturer or trading company?
A:
We are a manufacturer with over 25 years of experience in producing bolts, nuts, rods, and washers.
Q:What certifications do you have?
A:
We hold ISO9001 certification and provide Material Test Certificates (MTC) and mill certificates for all goods.
Send Inquiry
*To:
Ningbo Zhonglian Fastener Manufacture Co., Ltd.
Ningbo Zhonglian Fastener Manufacture Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Heavy Duty Half Thread Hex Bolt for Auto & Construction Equipment
US$0.0016-0.0017
3,000 Pieces(MOQ)
DIN6914 En14399 Hv Hr Heavy Hex Bolts High Strength Hexagon Head Structural Bolt
US$0.60-1.00
1 Piece(MOQ)
Premium 8.8 Grade Hex Head Bolts for Heavy-Duty Applications
US$0.013
1,000 Pieces(MOQ)
Heavy Duty A307b Zinc Plated Hex Bolt for Electrical Hardware
US$0.10
100 Boxes(MOQ)
M4-M12 Fastener Stainless Steel Hex Bolts ANSI/DIN Standard Plain Finish for Industry
US$0.02-0.20
3,000 Pieces(MOQ)
ASTM A325 Structural Hex Bolt for Steel Building and Bridge Engineering Projects
US$0.06-0.10
10 pieces(MOQ)
ASTM A490, A325 F10t High Strenth Bolt Heavy Hex Bolt Assembly with Nut and Washer
US$0.20-2.00
1,000 Pieces(MOQ)
High Strength Inch Size ASTM A490/A325/F3125 Type-1 Heavy Hex Bolt
US$800.00-900.00
10 Tons(MOQ)



















