What's your MOQ and delivery time?

MOQ is 1 ton, mixed sizes acceptable. Spot goods delivery time 7-15 days, customized orders 15-25 days.

What's the difference between Grade 8.8 and Grade 10.9?

Grade 10.9 has higher tensile strength, for heavy-load bridge and high-rise main beam connection; Grade 8.8 is cost-effective for medium-load indoor factory frames.

ASTM A325 Grade8.8/10.9 High Tensile Hex Bolt for Structural Steel Construction

Name: ASTM A325 Grade8.8/10.9 High Tensile Hex Bolt for Structural Steel Construction
Brand: Dalian Times Steel Co., Ltd.
SKU: 2172049542

Liaoning, ChinaDalian Times Steel Co., Ltd.

US$569.00

25-99 Tons

US$560.00

100-399 Tons

US$549.00

400+ Tons

Product profile

Material

Carbon Steel

Type

Hexagon Head

Connection

Structural Bolted Connection

Model NO.

ASTM A325 Grade8.8/10.9

Head Style

Hexagonal

Standard

ANSI, ASTM

Grade

10.9

Application

Building

Finish

Black

Thread Standard

Metric Coarse Thread, Unc Imperial Coarse Thread

Heat Treatment

Quenched & Tempered for High Tensile Strength

MOQ

25tons

Lead Time

5-7days

Transport Package

Standard Ecport Package

Specification

Metric M12-M36, Imperial 1/2''-1-1/2''

Trademark

MESCO STEEL

Origin

China

HS Code

7318159090

Production Capacity

50000tons/Year

Key features

Made per ASTM F3125 A325, Grade 8.8 & 10.9 optional. Alloy steel quenched & tempered for stable tensile strength, anti-breakage under long heavy load.

Black oxide for indoor dry workshops; electro galvanized for inland outdoor projects; hot dip galvanized for rainy coastal areas like Nigeria.

Metric M12-M36 & imperial 1/2''-1-1/2'' in stock, custom length available. Supporting A563 nuts, flat & spring washers for one-stop purchase.

Perfect for H/I beam connection, applicable to factory warehouses, steel bridges, high-rises and municipal infrastructure projects.

Each batch with official MTC test report. Complete papers support SONCAP clearance for West African countries.

Large spot stock with 7-15 days fast delivery. Neutral OEM packing, mixed sizes order & bulk discount available.

Uniform precise threads keep steady clamping force, hard to loosen under cyclic vibration, long service life for main steel structures.

Company profile

Dalian Times Steel Co., Ltd.Liaoning, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Minor Customization CertifiedExport Year: 1 Year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.04h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company focused on metal, steel, construction, mechanical equipment, and related import/export activities. It reports substantial export exposure and broad international customer reach, including Fortune Global 500 customers, but began exporting only one year ago according to the provided record. Customization is limited to minor customization and sample-based customization, while ODM and branded OEM services are stated as available. Evidence of formal management systems is weak: certifications are listed as NIL, quality assurance status is unknown, and several procedures lack written records. Financial information is present but cannot be reported here, and the available data does not establish financial credibility. No new products were developed in the past year, and no SDK is available. Production capacity is not directly evidenced, although the supplier has steel-related business scope and a stated factory location.

Supplier typeThe supplier is explicitly classified as a trading company. Its stated scope covers metal products, steel reinforcement, building materials, mechanical equipment, and import/export activities, indicating a trade-oriented business model rather than clearly documented manufacturing ownership.

CertificationsThe supplier’s certification of management systems is explicitly recorded as NIL. This is direct evidence that no management-system certification is reported in the provided information.

After-Sales capabilityThe supplier has no overseas showroom, overseas agent or branch, or offline trade-show experience, and reports zero countries with overseas services. It does have complaint-handling and corrective/preventive-action procedures, but no written records, so a robust after-sales system is not demonstrated.

Customization capabilityThe supplier explicitly offers minor customization and customization from samples, as well as ODM and OEM services for popular brands. These statements support a demonstrated but limited customization capability rather than unrestricted product development.

Client casesThe supplier states that its products are exported to over 90 countries and regions and serve more than 600 customers, including eight Fortune Global 500 companies. These are explicit customer-coverage claims, although no customer names, project details, or supporting case documentation are provided.

Product Q&A

Q:What standard does this structural bolt comply with?

Our bolts strictly follow ASTM F3125 A325 standard, equivalent to Grade 10.9 high strength fastener, Grade 8.8 version is also available for medium load projects.

Q:How many surface finishes are optional?

Three types for different environments: Black Oxide for indoor dry workshops, Electro Galvanized for inland outdoor, Hot Dip Galvanized for high-temperature rainy coastal areas like Nigeria.

Q:Do you supply complete bolt-nut-washer sets?

Yes. We can match A563 heavy hex nut, structural flat washer and spring washer together with bolts, unified strength for convenient one-stop installation.

Q:What sizes can you provide?

Metric sizes M12-M36 and imperial sizes 1/2''-1-1/2'' in stock, standard length 50-300mm, customized cut length is acceptable.

Q:What projects are these bolts suitable for?

Mainly for H/I beam connection, factory warehouse, long-span steel bridge, high-rise building, municipal infrastructure and power station steel structure fixation.