Stud Bolts Manufacturer & Exporter in India

Industrial-Grade Stud Bolts

We manufacture premium quality stud bolts used in oil & gas, petrochemical, refinery, power plant, offshore and marine industries. Our stud bolts are engineered to provide superior tensile strength, excellent corrosion resistance and reliable performance under extreme pressure and temperature conditions.

Stud bolts are fully threaded fasteners typically used with two heavy hex nuts for flange connections. They ensure uniform load distribution and secure joint integrity in critical piping systems. Our stud bolts are manufactured in metric and imperial sizes as per international standards.

Types of Stud Bolts We Manufacture

• Fully Threaded Stud Bolts
• Double End Stud Bolts
• Tap End Stud Bolts
• Reduced Shank Stud Bolts
• Continuous Thread Studs
• Custom Stud Bolts as per Drawing

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Material Grades

Our stud bolts are manufactured using high-quality raw materials sourced from approved mills to ensure durability, strength and long service life in aggressive environments.

• Stainless Steel: 304, 304L, 316, 316L, 321, 347
• Duplex & Super Duplex: UNS S31803, S32205, S32750, S32760
• Alloy Steel: ASTM A193 B7, B7M, B16
• Low Temperature Grades: ASTM A320 L7, L7M
• Nickel Alloys: Inconel, Monel, Hastelloy
• Carbon Steel & Custom Project Grades

All stud bolts are supplied with EN 10204 3.1 Mill Test Certification and can be provided with 3.2 certification upon request.

Looking for custom sizes or bulk export supply? Contact our sales team today.

Standards & Specifications

• ASTM A193 / A320
• ASTM A194 (Heavy Hex Nuts)
• ASME B18.2.1
• DIN / ISO Standards
• Thread: UNC, UNF, BSW, Metric
• Size Range: M6 to M100 & 1/4” to 4”
• Custom lengths available

Applications

Our industrial stud bolts are widely used in:

• Oil & Gas Refineries
• Petrochemical Plants
• Power Generation Units
• Offshore Platforms
• Marine Engineering
• Pressure Vessel & Heat Exchanger Flange Connections

Surface Finishes

• Black Finish
• Zinc Plated
• Hot Dip Galvanized
• PTFE Coated
• Xylan Coating
• Custom Coatings as per Project Requirement

Why Choose Ragnar Metals & Tubes for Industrial Stud Stud Bolts?

We are a globally trusted Stud Bolts manufacturer in India offering precision-engineered fastening solutions for critical industrial applications. Our Stud Stud Bolts undergo strict quality testing, dimensional inspection and third-party verification to ensure superior mechanical strength and corrosion resistance.

• In-house quality inspection
• EN 10204 3.1 / 3.2 Certification
• Custom coating & plating available
• Export packaging for global shipment
• Competitive bulk pricing

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Frequently Asked Questions (FAQs)