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ASTM A325m 8s Hsb Zinc Plated Bolts by Ningbo S&D Metalwork Co., Ltd.
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ASTM A325m 8s Hsb Zinc Plated Bolts - Image 1

ASTM A325m 8s Hsb Zinc Plated Bolts

🕐Last updated: Jul 20, 2026
1/ Bags
Min. Order: 1 Bags
💱₹1.00/ Bags
Live rate: 1 USD = 1.00 INR
📁CategoryNuts
💳Payment TermsT/T · L/C · D/P
Escrow Payment Available on EximNext
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Buy & Import ASTM A325m 8s Hsb Zinc Plated Bolts from Ningbo S&D Metalwork Co., Ltd. - China Wholesale Supply

The ASTM A325m 8s heavy structural bolts with zinc plating from Ningbo S&D Metalwork Co., Ltd. are high-strength fasteners designed for preloaded connections in steel structures. The 8s grade denotes a metric equivalent to ISO 8.8, with a typical tensile strength of 800 MPa, making them suitable for demanding applications such as bridges and high-rise buildings. The zinc plating provides a standard corrosion resistance of 240-500 hours in neutral salt spray tests, extending the bolts’ service life in moderate environments.

These bolts feature a heavy hex head, which is standard for structural applications to ensure compatibility with high-torque tools and to distribute load evenly. The threads are rolled, a process that enhances fatigue resistance by work-hardening the steel and eliminating stress concentrators. The zinc plating typically has a thickness of 5-15 microns, providing a balance between corrosion protection and dimensional tolerance for threaded parts.

Industries such as construction, infrastructure and heavy machinery rely on these bolts for critical connections in steel frameworks. Buyers often specify zinc-plated finishes for indoor or dry environments, while hot-dipped galvanizing may be preferred for outdoor or humid conditions. The bolts are supplied with matching nuts and washers, and are compatible with structural steel grades like ASTM A36 and A572. Packaging is typically in 20 kg or 25 kg boxes, with palletized options for bulk shipments.

Technical Specifications for Ningbo S&D Metalwork Co., Ltd. ASTM A325m 8s Hsb Zinc Plated Bolts
StandardASTM A325M
Grade8s (metric equivalent to 8.8)
MaterialCarbon steel
Tensile Strength800 MPa typical
Yield Strength640 MPa typical
Head TypeHeavy hex
Thread TypeRolled
Surface TreatmentZinc plated
Coating Thickness5-15 microns typical
Salt Spray Resistance240-500 hours typical
CompatibilityASTM A36, A572 structural steel typical
About Ningbo S&D Metalwork Co., Ltd. - Fasteners Supplier in China
🏭
Ningbo S&D Metalwork Co., Ltd.
China Harbor🥇 Gold Verified
4.5(20)

Ningbo S&D Metalwork Co., Ltd. is based in Yinzhou District, Ningbo, Zhejiang Province, China, a region known for its metalworking and fastener manufacturing industries. The company focuses on producing high-strength structural fasteners, including ASTM-compliant bolts, for domestic and international markets. Its imported tier status suggests it incorporates globally sourced materials or components to meet stringent quality requirements.

The supplier’s harbor trust tier indicates it has met baseline verification standards for export operations. While its response rate is currently unrecorded, its location in Yinzhou District provides access to Ningbo’s port infrastructure, which is critical for timely shipments. The company’s ability to supply zinc-plated bolts to ASTM standards demonstrates its capacity to serve buyers with specific technical and corrosion resistance needs.

Business TypeSupplier
Year EstablishedRecently Joined
EmployeesContact Supplier
Annual RevenueContact Supplier
Main ProductsView Products Tab
Major MarketsGlobal
Response Time<4h
Response RateNew Supplier
Frequently Asked Questions About ASTM A325m 8s Hsb Zinc Plated Bolts from Ningbo S&D Metalwork Co., Ltd.
Zinc plating is widely used for structural bolts because it provides a cost-effective balance between corrosion resistance and dimensional tolerance. A typical zinc coating of 5-15 microns offers 240-500 hours of protection in neutral salt spray tests, sufficient for indoor or moderately aggressive environments. It also maintains thread compatibility, unlike thicker coatings which may require re-tapping.

Sourcing ASTM A325m 8s Hsb Zinc Plated Bolts from Ningbo S&D Metalwork Co., Ltd. - China Import Guide

Before placing an order, confirm that the zinc-plated finish meets your project’s environmental requirements, as zinc plating may not suffice for highly corrosive conditions like marine or chemical exposure. Request coating thickness and salt spray test data to ensure the plating provides adequate protection. Verify that the bolts are supplied with matching nuts and washers, and that all components meet ASTM A325M standards for compatibility and performance.

Discuss lead times with Ningbo S&D Metalwork Co., Ltd., as production schedules can vary based on order volume and current demand. Standard lead times for zinc-plated structural bolts from China are typically 4-6 weeks, but this can extend during peak periods. Agree on Incoterms such as FOB Ningbo or CIF to your destination port, and clarify payment terms like T/T or L/C to avoid delays in shipment or customs clearance.

Upon receipt, inspect the bolts for consistent zinc plating, thread quality and head markings, which should include the grade (8S) and manufacturer’s identification. Use a micrometer to verify dimensions and a coating thickness gauge to confirm plating uniformity. For critical applications, conduct a sample load test to ensure the bolts meet the required tensile and yield strengths. Retain all test certificates and inspection records for quality assurance and traceability.

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Buy Astm A325m 8s Hsb Zinc Pl in Bulk — Verified Supplier in China

When sourcing Astm A325m 8s Hsb Zinc Plated Bolts for your business, securing the right balance of quality and cost is essential. Ningbo S&D Metalwork Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Nuts sector with strong demand from importing countries worldwide.

Astm A325m 8s Hsb Zinc Pl Specifications, Trade Terms & Pricing

Importing Astm A325m 8s Hsb Zinc Pl requires careful attention to shipping logistics, customs compliance, and secure payment terms. Ningbo S&D Metalwork Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.

About Ningbo S&D Metalwork Co., Ltd. — Supplier in China

Finding trustworthy partners is the foundation of successful importing. The supplier of this Astm A325m 8s Hsb Zinc Pl has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Nuts category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.

Import Astm A325m 8s Hsb Zinc Pl — Shipping, Logistics & Customs

Importing Astm A325m 8s Hsb Zinc Pl requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).

Frequently Asked Questions About Astm A325m 8s Hsb Zinc Pl

What is the wholesale price of Astm A325m 8s Hsb Zinc Plated Bolts?

The current listed wholesale price for Astm A325m 8s Hsb Zinc Plated Bolts from Ningbo S&D Metalwork Co., Ltd. is $1/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Ningbo S&D Metalwork Co., Ltd. through EximNext.

What is the Minimum Order Quantity (MOQ) for Astm A325m 8s Hsb Zinc Pl?

The supplier, Ningbo S&D Metalwork Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Astm A325m 8s Hsb Zinc Pl. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.

What is the HS Code for Astm A325m 8s Hsb Zinc Plated Bolts?

The HS Code classification for Astm A325m 8s Hsb Zinc Plated Bolts depends on the specific grade and form. Contact Ningbo S&D Metalwork Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.

How can I import Astm A325m 8s Hsb Zinc Pl from China?

To import Astm A325m 8s Hsb Zinc Pl from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Ningbo S&D Metalwork Co., Ltd.. Ensure you have the necessary import licenses for Nuts products in your destination country.

Is Ningbo S&D Metalwork Co., Ltd. a verified supplier?

Yes, Ningbo S&D Metalwork Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.

What are the key specifications of Astm A325m 8s Hsb Zinc Plated Bolts?

For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Ningbo S&D Metalwork Co., Ltd. through EximNext.

What packaging options are available for bulk orders of Astm A325m 8s Hsb Zinc Pl?

Ningbo S&D Metalwork Co., Ltd. offers Astm A325m 8s Hsb Zinc Pl with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.

Which countries import Astm A325m 8s Hsb Zinc Pl the most?

Astm A325m 8s Hsb Zinc Pl is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Ningbo S&D Metalwork Co., Ltd. through our platform.

What certifications does this Astm A325m 8s Hsb Zinc Pl supplier hold?

Ningbo S&D Metalwork Co., Ltd. maintains international quality certifications. These ensure that the Astm A325m 8s Hsb Zinc Pl meets international quality, safety, and regulatory standards required for cross-border trade.

How do I place a bulk order for Astm A325m 8s Hsb Zinc Plated Bolts on EximNext?

Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Ningbo S&D Metalwork Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.

What payment methods are accepted?

Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Ningbo S&D Metalwork Co., Ltd..

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