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Half Thread ASTM F3125 Grade A325/A325m or Customized Full Thread Hex Bolt
US$0.05
1,000-99,999 Pieces
US$0.01
100,000+ Pieces
Sample price:US$0.10/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon Steel, Alloy SteelType
Hexagon HeadModel NO.
ASTM A325/A325MConnection
Common BoltHead Style
HexagonalStandard
ASTM A325/A325mGrade
A325-1,A325m-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
Customizable Thread Type: Available in Half Thread or Full Thread Hex Bolt configurations based on customer needs.
High Strength Material: Manufactured from Carbon Steel, Alloy Steel (45#, 40CR, 35CrMo, 42CrMo) for durability.
Multiple Finish Options: Offers Black, Self-colour, Hot Dipped Galvanizing, YZP, Darcromet, and Galvanized finishes.
OEM/ODM Service: Accepts OEM and ODM services to meet specific design and branding requirements.
Quality Assurance: Strict QC inspection at every production link with MTC and mill certificate provided.
Wide Size Range: Sizes available from M12 to M36, covering 1/2' to 1-1/2' for diverse applications.
Standard Compliance: Meets ASTM F3125 Grade A325/A325M standards for building and structural applications.
Free Sample for New Clients: Provides free standard fastener samples for new customers (buyer pays express charges).
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedNearest Port: Ningbo Port, Shanghai portAverage Response Time: ≤4.38h 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 your main products?
A:
Our main products are fasteners: bolts, screws, rods, nuts, washers, anchors and rivets. Meantime,our company also produces stamping parts and machined parts.
Q:How to ensure that every process's quality
A:
Every process will be checked by our quality inspection department which insures everyproduct's quality. In the production of products, we will personally go to the factory to check the quality of products.
Q:How long is your delivery time?
A:
Our delivery time is generally 30 to 45 days. Or according to the quantity.
Q:What is your payment method?
A:
30% value of T/T in advance and other 70% balance on B/L copy. For small order lessthan1000USD, would suggest you pay 100% in advance to reduce the bank charges.
Q:Can you provide a sample?
A:
For new customer, sinofastener can provide free samples for standard fastener, But the clients will pay the express charges. For old customer, We will send you free samples and pay express charges by ourself.
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
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