What is the lead time for production?

The average lead time is within 15 workdays, regardless of peak or off-season periods.

What is included in a bolt set?

A standard bolt set consists of 1 bolt, 1 nut, and 2 washers.

What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

ASTM A325 Heavy Hex Structural Bolt

Name: ASTM A325 Heavy Hex Structural Bolt
Brand: Hangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.
SKU: 878513225

Zhejiang, ChinaHangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.

US$0.20

1,000 Sets

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Alloy Steel

Type

Hexagon Head

Model NO.

19JXHTB007

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, as

Grade

8.8

Application

Steel Structure

Finish

Cold Galvanized

Tensile Strength

>830MPa

Other Available Finish

Black Oxide, Galvanized, Dacromet,Ect

Yield Strength

>660MPa

Elongation

>14%

Transport Package

Carton and Wooden Pallet

Specification

3/4"~1 1/2"

Trademark

HYZ or OEM

Origin

Hangzhou China

HS Code

7318

Production Capacity

500000PCS/Month

Key features

High Strength Material: Made from Alloy Steel (40Cr/35CrMo/42CrMo) with tensile strength >830MPa and yield strength >660MPa.

Multiple Finish Options: Available finishes include Black Oxide, Galvanized, Dacromet, Phosphating, and Electronic Galvanized.

Flexible Customization: Supports OEM/ODM services, including customization from samples, designs, and specific head markings.

Complete Bolt Set: Each set includes 1 bolt, 1 nut, and 2 washers, ensuring a ready-to-install structural connection.

Strict Quality Control: 100% inspection for finished products with certifications from SGS, BV, and ISO9001/ISO14001.

Wide Size Range: Available in diameters M12~M36 and lengths 35~500mm to suit various steel structure applications.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season periods.

Professional Manufacturer: Established in 2007 with 10 production lines and 5 R&D engineers for reliable supply.

Company profile

Hangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤1.99h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company, although the supplied company descriptions also state that it specializes in manufacturing steel-structure fasteners, including high-strength heavy hex-head bolts, tension-control bolts, shear studs, and segment bolts. It reports ISO9001 and ISO14001 certification, historical OHSAS18001 and CE certifications, four production lines, six to ten quality-control staff, five R&D engineers, and stated output of 6,000 tons of bolts and 6,000,000 shear studs. It exports mainly to Southeast Asia and the Middle East, with exports representing 41%–50% of total sales and exporting beginning in 2007. Production scale and customer references are positively indicated, but overseas service infrastructure, detailed innovation services, customization/OEM/ODM capability, raw-material traceability, and after-sales capability are not sufficiently documented. Financial information is excluded.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certificates. It also states that it previously passed ISO9001:2008, ISO14001:2004, OHSAS18001:2007, and CE certification, while slice 8 identifies provincial and municipal high-tech enterprise ratings. The current validity of the older certifications is not established.

R&D capabilityThe supplier is described as a Zhejiang and Hangzhou high-tech enterprise and as having advanced production equipment and testing instruments. However, the supplier type for professional R&D, new-product R&D, 3D design, SDK availability, and other detailed innovation capabilities is unknown, so the breadth of its innovation capability cannot be confirmed.

Production capacityProduction capability is supported by four production lines, reported output of 6,000 tons of bolts and 6,000,000 shear studs, six to ten quality-control staff, and a stated off-peak lead time within 15 workdays. The company also reports more than ten years of development and advanced production and testing equipment, providing explicit evidence of operational capacity.

Client casesThe supplier states that it has become a supplier of major domestic steel-structure manufacturers, including China Railway Major Bridge Engineering Company, and has joined relevant industry associations. This is explicit evidence of at least one named customer relationship and domestic industry participation, although order scope and performance details are not provided.