Industrial Fasteners Supplier — Gujarat, West Bengal, Odisha, Bihar & Jharkhand

Looking for a reliable Industrial Fasteners supplier for your pipeline, structural, and process plant bolting requirements? We manufacture and supply a comprehensive range of ASTM-grade fasteners — including stud bolts, hex bolts, heavy hex nuts, washers, anchor bolts, threaded rods, and U-bolts — to EPC contractors, refineries, power plants, and industrial procurement teams across Gujarat, including Ahmedabad, Surat, Vadodara, Rajkot, Kachchh, Amreli, Aravalli, Gandhinagar, Navsari, Godhra, and Palanpur, as well as West Bengal, Odisha, Bihar, and Jharkhand.

Our industrial fasteners are manufactured to ASTM, ASME, IS, and DIN standards in a wide range of materials, from standard carbon steel through alloy steel, stainless steel, duplex steel, Monel, Inconel, and Hastelloy, meeting the bolting requirements of the most demanding high-pressure, high-temperature, and corrosive service applications.

What Are Industrial Fasteners?

Industrial Fasteners are mechanical components used to join, secure, or assemble two or more parts in a pipeline, structural, or process equipment assembly. In the context of oil and gas, petrochemical, power generation, and industrial piping, fasteners primarily refer to the stud bolts and nuts used to assemble flanged pipe joints and pressure vessel covers, as well as the bolts, screws, anchors, and threaded rods used in structural and equipment mounting applications.

The correct selection of fastener material and grade is critical in industrial piping: the fastener must be strong enough to maintain the required bolt load throughout the operating pressure and temperature cycle, must be chemically compatible with the service environment, and must match the specified ASTM or ASME bolting standard for the flange class and service conditions.

Industrial fasteners are used in:

• Flanged joint assembly in oil, gas, and process piping (stud bolts and nuts)
• Pressure vessel and heat exchanger closure bolting
• Structural steel connections in industrial buildings and platforms
• Equipment anchoring and base plate fixing (anchor bolts)
• Pipe support and restraint systems (U-bolts and clamps)
• High-temperature and cryogenic service bolting

Types of Fasteners We Supply

We manufacture and supply the complete range of industrial fastener types required for pipeline, structural, and process plant applications.

Stud Bolts — A fully threaded rod with nuts at both ends, the standard fastener for assembling flanged piping joints. ASTM A193 Grade B7 alloy steel stud bolts paired with ASTM A194 Grade 2H heavy hex nuts are the most widely used combination for carbon steel pipeline flanges. Available in metric M6 to M180 and imperial 1/4 inch to 7 inch.

Hex Bolts (Hex Head Bolts) — A bolt with a hexagonal head and threaded shank, used in structural and general equipment fastening applications. Available in a wide range of grades and materials from standard carbon steel through stainless steel and high-tensile alloy steel.

Heavy Hex Nuts — The standard nut used with stud bolts in flanged piping applications, with a larger across-flat dimension than standard hex nuts for greater bearing area and wrench engagement. ASTM A194 Grade 2H heavy hex nuts are the standard companion to B7 stud bolts.

Hex Nuts, Lock Nuts, and Coupling Nuts — Standard hex nuts, prevailing-torque locking nuts, and coupling/extension nuts for structural and equipment assembly applications across all material grades.

Washers (Flat, Spring, and Lock Washers) — Used to distribute bolt load, prevent galling, and provide positive locking in structural and equipment bolting applications.

Anchor Bolts (L-Type, J-Type, Headed) — Used to anchor equipment base plates, columns, and structural members to concrete foundations in industrial plant construction.

Threaded Rods (All-Thread Rods) — Fully threaded steel rods used in pipe hanger assemblies, structural tie rods, concrete anchoring, and general industrial fastening applications.

U-Bolts and Eye Bolts — U-bolts for pipe clamping and support; eye bolts for lifting, rigging, and equipment attachment applications.

High-Tensile Structural Bolts (IS 1367, ASTM A325, ASTM A490) — Heavy hex structural bolts for structural steel connections in industrial buildings, bridges, and platforms.

ASTM Fastener Grades — Key Standards Explained

Selecting the correct ASTM grade is essential for matching your fasteners to the pressure class, temperature range, and chemical environment of your application.

ASTM A193 Grade B7 (Alloy Steel — Chrome-Moly) — The most widely used bolting material for carbon steel pipeline flanges, pressure vessels, and process equipment. B7 stud bolts offer high strength with excellent toughness, suitable for service from -50°F to 1100°F (approximately -46°C to 593°C). Compatible with ASTM A194 Grade 2H heavy hex nuts.

ASTM A193 Grade B8 / B8M (Stainless Steel 304 / 316) — For corrosion-resistant bolting in chemical, pharmaceutical, and food processing applications, as well as for ANSI Class 150 to Class 600 stainless steel flanged joints. B8 covers SS304; B8M covers SS316.

ASTM A193 Grade B16 (Alloy Steel — Chrome-Moly-Vanadium) — For elevated-temperature service above the range of B7, used in power plant steam flanges and high-temperature refinery process piping.

ASTM A320 Grade L7 (Low Temperature Alloy Steel) — For cryogenic and sub-zero temperature service, including LNG, ethylene, and refrigeration piping systems. Notch toughness tested to verify impact resistance at low temperatures.

ASTM A307 Grade A / Grade B (Carbon Steel) — General-purpose carbon steel bolts and studs for lower-pressure, lower-temperature structural and mechanical applications.

ASTM A194 Grade 2H (Heavy Hex Nut — Carbon Steel) — The standard heavy hex nut paired with A193 B7 stud bolts for flanged joint assembly across all pressure classes.

ASTM A194 Grade 8 / 8M (Stainless Steel Nuts) — For use with ASTM A193 B8/B8M stainless steel bolting in corrosive service applications.

Fastener Material Options

We supply fasteners in the full range of materials required for industrial bolting applications.

Carbon Steel — The most economical option for general structural and low-to-medium pressure bolting, available in standard grades with zinc plating, hot-dip galvanizing, or other protective coatings.

Alloy Steel (Chrome-Moly) — ASTM A193 B7 and B16 grades offer high strength and toughness for high-pressure, high-temperature flanged joint and pressure vessel bolting.

Stainless Steel (SS304, SS316, SS316L) — Excellent corrosion resistance for chemical, pharmaceutical, food processing, and marine applications, available in ASTM A193 B8/B8M and equivalent grades.

Duplex and Super Duplex Stainless Steel — High strength and superior corrosion resistance for offshore, subsea, and aggressive chemical service environments.

Monel, Inconel, Hastelloy, and Titanium — Exotic alloy fasteners for extreme corrosion resistance in the most aggressive process media, including hydrofluoric acid, chlorine, and seawater service.

Key Features of Our Industrial Fasteners

ASTM and ASME standard compliance — All fasteners manufactured to applicable ASTM, ASME, IS, and DIN standards with full dimensional and mechanical compliance.

Metric and imperial sizes available — Metric sizes from M6 to M180 and imperial sizes from 1/4 inch to 7 inch, covering all standard flange bolt circle requirements.

Complete thread options — Coarse (UNC), fine (UNF), and extra fine thread forms available; metric coarse and fine threads for DIN and ISO standard applications.

Full material traceability — EN 10204 3.1 material test certificates available on request for critical project and third-party inspection requirements.

Surface treatment options — Black finish, zinc plating, hot-dip galvanizing, cadmium plating, Xylan/PTFE coating, and DACROMET coating available for corrosion protection requirements.

PMI and hardness testing — Positive material identification and Rockwell/Brinell hardness testing available for critical service fastener lots.

Technical Specifications — Industrial Fasteners

Third-party inspection, material test certificates, and special coating/plating finishes available on request.

Industrial Fasteners Supplier in Gujarat

Gujarat’s strong pipeline construction, refinery, and process equipment manufacturing base creates consistent demand for ASTM-grade fasteners, with active procurement across all major industrial cities.

Ahmedabad is our primary manufacturing and supply hub. We supply ASTM A193 B7 stud bolt and 2H heavy hex nut sets, hex bolts, anchor bolts, and threaded rods to EPC contractors, piping fabricators, and industrial procurement companies across Ahmedabad’s GIDC industrial estates, including Naroda, Odhav, Vatva, and Kathwada.

In Surat, demand comes from the city’s chemical, textile, and petrochemical process industries, where stainless steel SS316 and duplex fasteners are regularly sourced for corrosive media flange joint assembly across the Sachin and Pandesara GIDC industrial zones.

Vadodara (Baroda), home to major refineries and petrochemical complexes including IOCL Koyali, generates strong, consistent demand for high-grade B7 stud bolts and alloy steel fasteners for high-pressure, high-temperature flanged piping and pressure vessel assembly throughout the refinery complex.

Rajkot’s engineering and valve manufacturing industry, one of India’s most active fastener consumption hubs, relies on our fasteners for OEM valve and equipment assembly and process piping projects across the Aji GIDC, Shapar-Veraval, and Metoda industrial zones.

We also actively supply to Kachchh (Bhuj, Gandhidham), Amreli, Aravalli, Gandhinagar, Navsari, Godhra (Panchmahal), and Palanpur (Banaskantha), covering Gujarat’s major industrial hubs and tier-2 project zones.

→ Request a quote for Industrial Fasteners in Gujarat

Industrial Fasteners Supplier in West Bengal

West Bengal’s steel plants, power generation infrastructure, port facilities, and growing industrial base create consistent demand for industrial fasteners across the state.

We supply Industrial Fasteners in Kolkata, West Bengal’s largest commercial and industrial centre, to EPC contractors, power plant maintenance teams, and structural fabricators working across the city’s industrial belt. Our B7 stud bolt and 2H nut sets are regularly ordered for refinery and process plant flanged joint maintenance.

In Howrah, our fasteners support structural and industrial assembly requirements across the city’s engineering and fabrication sector. We also serve Durgapur and Asansol in West Bengal’s steel and coal belt, and Haldia, a key port and petrochemical hub where process plant and pipeline fasteners are in consistent demand.

Industrial Fasteners Supplier in Odisha

Odisha’s growing steel, mining, power generation, and port infrastructure sectors create strong demand for industrial fasteners for structural assembly, equipment mounting, and process piping applications.

We supply Industrial Fasteners in Bhubaneswar, the state capital, for process plant and industrial infrastructure projects. In Rourkela, home to a major steel plant with extensive flanged piping and structural bolting requirements, our ASTM B7 stud bolts, hex bolts, and anchor bolts are used extensively across the plant’s operations.

We also serve Cuttack, Sambalpur, and Paradip — a major port and petrochemical hub where process plant and pipeline flanged joint bolting creates steady fastener demand.

Industrial Fasteners Supplier in Bihar

Bihar’s expanding industrial base, power generation plants, and infrastructure construction create emerging demand for industrial fasteners across the state’s major cities.

We supply Industrial Fasteners in Patna, the state capital, for structural and industrial plant assembly projects. In Muzaffarpur and Gaya, our fasteners support industrial plant equipment mounting and process piping assembly in the region’s growing manufacturing sector.

We also serve Bhagalpur and Darbhanga for structural and process plant fastener requirements as industrial infrastructure expands across Bihar.

Industrial Fasteners Supplier in Jharkhand

Jharkhand’s strong industrial and mining base — including major steel plants at Jamshedpur and Bokaro — creates consistent, high-volume demand for industrial fasteners used in structural assembly, process piping, and equipment mounting.

We supply Industrial Fasteners in Ranchi, the state capital, and Jamshedpur, home to one of India’s largest steel plants, where ASTM B7 stud bolts, heavy hex nuts, anchor bolts, and structural hex bolts are consumed in large volumes across the plant’s operations. In Dhanbad, a major coal industry hub, our fasteners support industrial plant equipment and pipeline assembly in the mining sector.

We also serve Bokaro, home to a major steel plant, and Hazaribagh for process piping and structural bolting projects across the state.

→ Enquire about Industrial Fasteners supply in Jharkhand

ASTM A193 B7 Stud Bolt with 2H Nut — The Standard Pipeline Flange Fastener

For flanged joint assembly in carbon steel process piping, the most widely specified fastener combination across Indian refineries, power plants, and pipeline projects is the ASTM A193 Grade B7 Stud Bolt with ASTM A194 Grade 2H Heavy Hex Nut.

Key features of this combination:

• B7 stud bolts are machined from medium-carbon chromium-molybdenum alloy steel, quenched and tempered for high strength and toughness
• Suitable for service from -50°F to 1100°F (-46°C to 593°C), covering the full range of refinery and process plant temperatures
• 2H heavy hex nuts provide the larger bearing area and wrench engagement required for reliable flange bolt torquing
• Available in both metric and imperial thread forms, UNC coarse thread standard for most applications
• Zinc plated as standard for basic corrosion protection; hot-dip galvanized and PTFE-coated options available

This fastener set is suitable for use with ASME B16.5 flanges from Class 150 through Class 2500, and is the default bolting specified by most Indian EPC contractors and refinery maintenance teams.

Why Choose Us for Industrial Fasteners?

We are a trusted manufacturer and supplier of ASTM-grade industrial fasteners, serving customers across Gujarat and Eastern India with a strong reputation for material compliance, dimensional accuracy, and fast turnaround.

Pan-India dispatch — We serve Gujarat’s major cities and districts alongside West Bengal, Odisha, Bihar, and Jharkhand, with in-stock standard sizes dispatched within 24 to 48 hours.

Complete grade range — ASTM A193 B7, B8, B8M, B16, L7; ASTM A194 2H, 8, 8M; carbon steel, stainless steel, duplex, Monel, Inconel, and Hastelloy fasteners available under one roof.

Metric and imperial available — M6 to M180 metric, 1/4 inch to 7 inch imperial, in UNC, UNF, and metric coarse/fine threads.

Full material traceability — EN 10204 3.1 material test certificates on request for critical project requirements.

Surface treatment options — Zinc plating, hot-dip galvanizing, Xylan coating, DACROMET, and PTFE coating available for enhanced corrosion protection.

Frequently Asked Questions — Industrial Fasteners

What is an ASTM A193 B7 stud bolt?
An ASTM A193 Grade B7 stud bolt is a fully threaded alloy steel (chromium-molybdenum) stud bolt, manufactured to ASTM A193 specifications for high-temperature and high-pressure bolting. It is the most widely used stud bolt for assembling flanged joints in carbon steel process piping and pressure vessels and is typically paired with ASTM A194 Grade 2H heavy hex nuts.

What is the difference between ASTM A193 B7 and B8 stud bolts?
ASTM A193 B7 is an alloy steel (chrome-moly) grade used for general high-pressure, high-temperature service with carbon steel flanges, suitable from -46°C to 593°C. ASTM A193 B8 is a stainless steel SS304 grade used for corrosion-resistant flanged joint bolting, paired with A194 Grade 8 nuts.

What nuts are used with B7 stud bolts?
ASTM A193 Grade B7 stud bolts are paired with ASTM A194 Grade 2H heavy hex nuts as the standard combination for flanged piping joint assembly across all ASME B16.5 pressure classes.

Do you supply industrial fasteners in Gujarat?
Yes. We supply across Ahmedabad, Surat, Vadodara, Rajkot, Kachchh, Amreli, Aravalli, Gandhinagar, Navsari, Godhra, and Palanpur, with fast dispatch from our Gujarat facility.

Can I get industrial fasteners delivered to West Bengal, Odisha, Bihar, or Jharkhand?
Yes. We regularly supply to Kolkata, Howrah, Durgapur, Haldia in West Bengal; Bhubaneswar, Rourkela, Paradip in Odisha; Patna, Muzaffarpur in Bihar; and Ranchi, Jamshedpur, Dhanbad, Bokaro in Jharkhand.

What size range do your stud bolts come in?
Our stud bolts are available in imperial sizes from 1/4 inch to 7 inch diameter and metric sizes from M6 to M180, in coarse (UNC) and fine (UNF) thread forms, covering all standard ASME B16.5 flange bolt circle requirements.

Are PTFE-coated fasteners available?
Yes. We supply PTFE-coated (Xylan-coated) fasteners for applications requiring reduced thread friction during torquing, galling prevention in stainless steel fasteners, and enhanced corrosion resistance in external exposure environments.

Get a Quote — Industrial Fasteners

We supply Industrial Fasteners — ASTM A193 B7/B8/B8M/B16/L7 stud bolts, A194 2H/8/8M heavy hex nuts, hex bolts, anchor bolts, threaded rods, U-bolts, and washers, in carbon steel, alloy steel, stainless steel SS304/SS316, duplex, Monel, Inconel, and Hastelloy — to buyers across Gujarat (Ahmedabad, Surat, Vadodara, Rajkot, Kachchh, Amreli, Aravalli, Gandhinagar, Navsari, Godhra, Palanpur) and across West Bengal, Odisha, Bihar, and Jharkhand.

Contact us today for the best price, technical guidance, and fastest dispatch for your project bolting requirements.