What materials are used for the bolts?

Materials include Alloy Steel (40Cr, 35CrMo, 42CrMo) and Carbon Steel (35K, 45K).

What is included in a bolt set?

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

What is the tensile strength of the bolts?

The tensile strength is greater than 120,000 psi.

ASTM A325/A325m Heavy Hex Head Bolts for Steel Structure

Name: ASTM A325/A325m Heavy Hex Head Bolts for Steel Structure
Brand: Hangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.
SKU: 847866205

Zhejiang, ChinaHangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.

US$900.00

1,000 Sets

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Alloy Steel

Type

Hexagon Head

Model NO.

JX18B028

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, as

Grade

8.8

Application

Steel Structure

Finish

Black

Tensile Strength

>120000psi

Other Available Finish

HDG, Galvanized, Dacromet,Ect

Yield Strength

>85000psi

Elongation

>14%

Transport Package

Carton and Wooden Pallet

Specification

1/2"~1-1/2"

Trademark

HYZ or OEM

Origin

Hangzhou China

HS Code

7318

Production Capacity

500mt/Month

Key features

Customizable Surface Finish: Options include HDG, Galvanized, Dacromet, black oxide, and phosphating.

Flexible Customization Service: Supports customization from samples, designs, and full/minor customization.

High Tensile Strength: Tensile strength exceeds 120,000 psi for robust structural performance.

Multiple Standard Compliance: Meets ASTM A325, DIN, ANSI, GB, JIS, and AS standards.

Complete Bolt Set: Includes 1 bolt, 1 nut, and 2 washers for easy installation.

Professional Certification: Certified by SGS, BV, ISO9001, and provides 3.1 certificates.

Custom Head Marking: Head marking can be customized to customer's brand or request.

High-Quality Materials: Made from Alloy Steel (40Cr/35CrMo/42CrMo) or Carbon Steel.

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: ≤6.15h

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.