Ningbo Fourway Co., Ltd | High-Quality Fasteners Manufacturer

About Ningbo Fourway Co., Ltd

Ningbo Fourway Co., Ltd has been recognized as a leading manufacturer and distributor of commercial, specialty, and exotic alloy fasteners designed for demanding industrial applications.

We specialize in producing fasteners that meet international standards including ASTM, DIN, and ISO. Our products are trusted across the Oil & Gas, Petrochemical, Refineries, Railways, Construction, and Energy industries.

ISO 9001:2008 Certified Quality Management System
Global Presence: Asia, Europe, Middle East, USA, Latin America
Compliance with ASTM, DIN, ISO, and other technical standards

Our Product Range

We manufacture a wide variety of high-strength fasteners meeting international standards such as ASTM A193, A194, A325, A490, F1554, and more.

Structural Bolts

ASTM A325, A490 – High-strength bolts for structural steel applications.

Standards: ASTM A325, A490

Applications: Steel construction, bridges, buildings

Threaded Rods / Stud Bolts

ASTM A193 B7, B8 – Full-length threaded rods for high-pressure flanges.

Standards: ASTM A193, A320

Grades: B7, B8, B8M, L7, 8.8, 10.9

Heavy Hex Nuts

ASTM A194 2H, 7, 8M – Designed for high-stress environments.

Standards: ASTM A194, A563

Grades: 2H, 2HM, 7, 7M, 8, 8M

Hex Socket Cap Screws

Precision-engineered screws for tight spaces and high torque.

Standards: ISO 4762, DIN 912

Materials: Alloy steel, stainless steel

Hardened Washers

ASTM F436 – Hardened washers for structural bolt assemblies.

Standard: ASTM F436

Type: Type 3 – Hardened steel

U-Bolts

Custom U-bolts for pipe clamping and structural support.

Standards: ASTM A307, A193

Finishes: Plain, hot-dip galvanized

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Anchor Bolts

ASTM F1554 Grade 36, 55, 105 – For concrete anchoring in construction.

Standard: ASTM F1554

Types: Bent, headed, threaded

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Round Bars & Spikes

High-tensile round bars and railway spikes for industrial use.

Materials: Carbon steel, alloy steel

Standards: ASTM A449, A36

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Exotic Alloy Fasteners

Monel, Inconel, Hastelloy, Duplex, and Super Duplex alloys.

Alloys: Monel 400/K500, Inconel 625/718, C276

Applications: Corrosive, high-temp environments

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Specialty Fasteners

Custom-designed fasteners for unique industrial requirements.

Capabilities: OEM, ODM, custom sizes & threads

Industries: Oil & Gas, Energy, Marine

Why Choose Ningbo Fourway?

Our commitment to quality, global reach, and technical expertise sets us apart in the fastener industry.

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ISO 9001:2008 Certified

Our quality management system ensures consistent product excellence and continuous improvement.

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Global Distribution

We serve clients across Asia, Europe, Middle East, USA, and Latin America with reliable logistics.

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Standards Compliance

All products meet ASTM, DIN, ISO, and other international technical specifications.

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Custom Solutions

We offer OEM/ODM services and can manufacture to your exact drawings and requirements.

Frequently Asked Questions

Find answers to common inquiries about our products and services.

What standards do your fasteners meet?

Our fasteners comply with international standards including ASTM (A193, A194, A325, A490, F1554), DIN, ISO, and others as required by customer specifications.

Do you offer custom manufacturing?

Yes, we provide OEM and ODM services. We can manufacture fasteners to your exact drawings, materials, sizes, and thread specifications.

What materials do you work with?

We produce fasteners from carbon steel, alloy steel, stainless steel (304, 316, etc.), and exotic alloys including Monel, Inconel, Hastelloy, and Duplex/Super Duplex.

Where are you located?

Our headquarters is in Ningbo, China. We also have representation in Korea, the UK, and South America for customer support.

How can I place an order?

Please visit our official website at cnfourway.com to contact our sales team and request a quote.

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