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HIGH-STRENGTH FASTENERS
ISO 9001 & IATF 16949 Certified Manufacturer

High-Strength Fasteners

From structural bolts to custom CNC-machined parts — we deliver high-quality fasteners to null+ countries with competitive factory-direct pricing.

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Annual Output
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Export Countries

Our Products

Comprehensive range of standard and custom fasteners for every industry

Structural Bolts

High-strength hex bolts, TC bolts, anchor bolts for steel structure connections

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Nuts

Hex nuts, flange nuts, heavy hex nuts, lock nuts, weld nuts

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Screws

Self-drilling screws, self-tapping screws, machine screws, drywall screws

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Washers

Flat washers, spring washers, DTI washers, hardened washers

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Threaded Rods & Studs

All-thread rods, double-end studs, anchor rods, chemical anchor studs

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Wind Power Fasteners

Tower bolts, foundation bolts, blade bolts for wind turbine assembly

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Steel Structure Parts

C/Z purlins, bracing, connecting plates, shear connectors

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Custom & OEM Parts

CNC machined parts, special fasteners to your drawings and specifications

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Why Choose Us

Trusted by leading manufacturers across null+ countries

Established Manufacturer

Founded in 2016 with ¥200M investment. Modern factory built to national top-tier standards in Yongnian — China's fastener capital.

500+ Equipment

Multi-station cold heading, CNC machining, auto quenching & tempering lines, intelligent industrial robots, and full testing lab.

Quality Certified

ISO 9001 certified. Every batch tested — tensile, hardness, metallography, salt spray. Full material traceability guaranteed.

Industry Leaders Trust Us

Strategic partnerships with China Railway, Honglu Steel, Jinggong Steel, Hangxiao Steel Structure and more.

Custom Engineering

In-house R&D team for special fastener design. Custom materials, coatings, and non-standard dimensions to your specs.

Global Supply Chain

Export to 50+ countries. FOB/CIF/DDP terms. Dedicated QC team ensures consistent quality for every shipment.

Featured Products

Our most popular fastener products

Structural Bolts

High Strength Hex Bolt 10.9S

Material: Medium Carbon Alloy Steel (40Cr / 20MnTiB)
Size: M16 - M30 × 40~200mm
Standard: GB/T 1228, GB/T 3632
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Structural Bolts

Tension Control (TC) Bolt Assembly

Material: 20MnTiB / 40Cr
Size: M16 - M30
Standard: GB/T 3632, ASTM F1852
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Structural Bolts

Anchor Bolt Assembly

Material: Q345B / 45# / 40Cr
Size: M24 - M64 × 500~3000mm
Standard: GB/T 799, ASTM F1554
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Nuts

Heavy Hex Nut Grade 10H

Material: 45# Steel / 40Cr
Size: M16 - M36
Standard: GB/T 1229, ASTM A563
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Wind Power Fasteners

Wind Tower Flange Bolt

Material: 42CrMo / 40CrNiMo
Size: M36 - M64 × 120~500mm
Standard: EN 14399, GB/T 1228
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Industries We Serve

Trusted fastener solutions across diverse industries

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Steel Structure & Construction

High-strength bolt assemblies for steel frame buildings, workshops, warehouses, and prefabricated structures.

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Bridge Engineering

Structural fasteners for highway bridges, railway bridges, and pedestrian overpasses.

Wind Power & Energy

Tower bolts, foundation bolts, and blade fasteners for onshore and offshore wind turbines.

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Railway & High-Speed Rail

Track fasteners, rail clips, and structural bolts for railway infrastructure.

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Automotive & Machinery

Precision fasteners for automotive assembly, heavy machinery, and industrial equipment.

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Nuclear & Power Generation

Special-grade fasteners meeting stringent nuclear safety and quality requirements.

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Shipbuilding & Marine

Corrosion-resistant marine grade fasteners for shipbuilding and offshore platforms.

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Prefabricated Buildings

Complete fastener solutions for green prefabricated and modular construction.

Project References

Our fasteners are used in landmark projects across China

Shenzhen Qianhai International Hub
Steel Structure

Shenzhen Qianhai International Hub

Poly Real Estate South China HQ
High-Rise Building

Poly Real Estate South China HQ

Beijing Daxing International Airport
Airport Infrastructure

Beijing Daxing International Airport

Hong Kong-Zhuhai-Macau Bridge
Bridge Engineering

Hong Kong-Zhuhai-Macau Bridge

Guangxi Hechi Garden Expo Park
Public Facility

Guangxi Hechi Garden Expo Park

Shenzhen New China Life Insurance Tower
High-Rise Building

Shenzhen New China Life Insurance Tower

Quality Certifications

ISO 9001:2015

ISO 9001:2015

Quality Management System

ISO 14001:2015

ISO 14001:2015

Environmental Management System

GB/T 45001

GB/T 45001

Occupational Health & Safety

Business License

Business License

Handan Zongyou Fasteners Co., Ltd.

Production License

Production License

National Industrial Product Production License

Material Certificates

Material Certificates

Steel Mill Inspection Certificates