What size range of fasteners does Viha Steel & Forging manufacture?

We manufacture bolts, nuts, studs, threaded rods and screws from M2 up to M100 in metric sizes, with equivalent imperial sizes and custom lengths produced to drawing.

Which certifications and test documents are supplied with each order?

We are a PED approved manufacturer and FMAI member. Every forging passes NDT, chemical and mechanical testing and is shipped with a Mill Test Certificate traceable to the heat number.

Do you supply hot dip galvanized fasteners for export?

Yes. Viha Steel & Forging is one of the largest exporters of hot dip galvanized fasteners in India, supplying structural bolts, nuts, washers and threaded rods for infrastructure and power projects.

Which markets and projects have used your products?

Our steel flange forgings and fasteners are installed in LNG projects and oil and gas pipelines across Far East Asia, West Africa and the Gulf countries.

Can you manufacture special grades and non-standard dimensions?

Yes. Alongside carbon, alloy and stainless steel, we produce fasteners in phosphor bronze, silicon bronze, aluminum bronze, copper and titanium, in custom sizes and thread forms.

Industrial Steel Fasteners & Forged Flanges Manufacturer in India

Product Highlights

Grade 8.8 High Tensile Strength: Ensures durability and reliability in demanding applications.

Standard Carbon Steel: Provides robust performance and long-lasting use.

Galvanized Surface Treatment: Protects against corrosion and extends lifespan.

DIN931/DIN933 Compliance: Meets international standards for precision and quality.

Hex Bolt Nut Design: Offers easy installation and secure fastening.

Specifications

A325 Grade 8.8 Hex Bolt Nut DIN931/DIN933 Standard Carbon Steel Galvanized Surface Treatment High Tensile Bolts

Detail Shot

About the Supplier

Handan Yongnian Shuaiyu Fastener Manufacturing Co., Ltd.

Established in 2009, Handan Yongnian Shuaiyu Fastener Manufacturing Co., Ltd. is a leading Chinese manufacturer of bolts, nuts and expansion anchor bolts, based in Handan, Hebei. With a 30,000 m² production base and 6,000 m² warehouse, our annual output exceeds 18,000 tons.

We have adopted advanced intelligent production lines from Germany and Taiwan, China, achieving full automation for superior quality and efficiency.

Our products are exported globally to the US, Germany, Russia, Saudi Arabia, Southeast Asia and beyond, winning high praise and long-term stable partnerships with customers worldwide.

Company Overview

Production Workflow

Trade Show Participation

Packaging & Shipping Specifications

Frequently Asked Questions

Q Are you a factory or a trading company?

We are a professional direct factory with 12+ years of fastener production experience, we have our own production workshop and can provide customized production and one-stop service. Contact us to get our factory video and latest price list!

Q Do you want to solve all problems related to purchase price comparison, customized transportation and supporting parts in one go?

Great. We offer one-stop service to solve your problems. For convenience and efficiency, please contact me right away!

Q What international standards do your hex bolts and nuts adhere to?

Our products comply rigorously with international manufacturing standards including DIN931, DIN933, and ASTM A325 specifications, ensuring strict dimensional tolerance and reliable mechanical performance.

Q What are the mechanical advantages of Grade 8.8 high tensile bolts?

Grade 8.8 bolts deliver excellent tensile strength and yield performance, making them suitable for heavy-duty structural connections, industrial equipment, construction frameworks, and demanding load-bearing assemblies.

Q How does the galvanized coating ensure corrosion protection?

The galvanized surface treatment applies a protective zinc layer that insulates the high tensile carbon steel core from oxidation, chemical moisture, and ambient weathering, significantly extending service lifespan.

Q Which regions do you export to, and what is your annual production capacity?

Our annual capacity exceeds 18,000 tons with a 30,000 m² modern manufacturing facility. We export globally across the United States, Germany, Russia, Saudi Arabia, Southeast Asia, and worldwide markets.

A325 Grade 8.8 Hex Bolt Nut DIN931/DIN933 Standard Carbon Steel Galvanized Surface Treatment High Tensile Bolts

Product Description

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A325 Grade 8.8 Hex Bolt Nut DIN931/DIN933 Standard Carbon Steel Galvanized Surface Treatment High Tensile Bolts

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