What is the average lead time for production?

Both peak and off-peak season lead times are within 15 workdays.

What payment terms do you accept?

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

Is the product suitable for tunnel construction?

Yes, it is specifically designed for railway, subway, and tunnel construction projects.

Grade 8.8/10.9 Carbon Steel Segment Bolt Tunnel Bolt Curve Segment Bolt

Name: Grade 8.8/10.9 Carbon Steel Segment Bolt Tunnel Bolt Curve Segment Bolt
Brand: Hangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.
SKU: 1913963645

Zhejiang, ChinaHangzhou Jiaxiang Gaoqiang Bolts Co., Ltd.

US$0.10-1.00

500 Pieces

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

No Head

Model NO.

JX21SB001

Connection

Common Bolt

Head Style

No Head

Standard

DIN, ANSI, GB, JIS

Grade

8.8

Application

Machinery, Building

Finish

Hot Galvanizing

Available Grade

4.8, 6.8, 8.8, 10.9, 12.9

Thread

Half or Full Thread

Transport Package

Woven Bag and Pallet

Specification

M12-M56

Trademark

HYZ or OEM

Origin

Hangzhou

HS Code

7318

Production Capacity

300000PCS/Month

Key features

High Strength Grades: Available in grades 4.8, 6.8, 8.8, 10.9, and 12.9 for diverse load requirements.

Customizable Thread: Options include half thread or full thread to match specific application needs.

Diverse Finish Options: Available in hot dip galvanized, black, dacromet, zinc, and other finishes.

OEM and ODM Services: Full customization, minor customization, and flexible customization from samples or designs.

Wide Size Range: Sizes available from M20 to M56 for various construction projects.

International Standards: Complies with DIN, GB, ANSI, and JIS standards or customer drawings.

Fast Lead Time: Peak and off-peak season lead times are both within 15 workdays.

Strict Quality Control: 100% inspection including visual and function checks with 4 dedicated QA inspectors.

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: ≤6.94h

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.