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Stainless Steel Fasteners

Stainless Steel Fasteners Manufacturer in India - SS 304, SS 316 Bolts, Nuts, Washers, Screws, Threaded Rods Supplier & Exporter
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Stainless Steel Fasteners – Top Manufacturer, Supplier & Exporter in India

STAINLESS INDIA is a leading Stainless Steel Fasteners manufacturer, supplier, stockist and exporter in India, offering premium-quality industrial fasteners engineered for demanding engineering, construction, petrochemical, offshore, marine and power generation applications. We manufacture and supply stainless steel bolts, nuts, washers, screws, threaded rods, studs, anchor bolts and customised fastening solutions in accordance with ASTM, DIN, ISO, ANSI, BS and JIS international standards.

Our manufacturing range includes SS 304, SS 304L, SS 316, SS 316L, SS 310, SS 310S, SS 321, SS 347, SS 347H, Duplex Stainless Steel, Super Duplex Stainless Steel and special alloy fasteners. Every product is manufactured using high-quality raw materials and undergoes strict dimensional inspection, mechanical testing and quality control before dispatch.

We supply hex bolts, hex nuts, socket head cap screws, threaded rods, stud bolts, U-bolts, eye bolts, carriage bolts, machine screws, self-tapping screws, plain washers, spring washers, lock washers and customised fasteners for industrial projects worldwide. Our fasteners are available in both metric and imperial sizes with standard and customised thread forms.

Our stainless steel fasteners provide outstanding corrosion resistance, high tensile strength, excellent durability and long service life, making them suitable for corrosive environments including chemical processing plants, refineries, offshore platforms, desalination plants, food processing industries, pharmaceutical facilities, pulp and paper mills and marine structures.

Every shipment is supplied with complete documentation including Mill Test Certificate (EN 10204 3.1), PMI testing (when required), third-party inspection, heat number traceability, packing list and export documentation. With ready stock, competitive pricing and worldwide logistics support, STAINLESS INDIA serves EPC contractors, OEM manufacturers, fabricators, engineering companies and industrial distributors across more than 70 countries.

Leading manufacturer of stainless-steel fasteners in India. We maintain a stock of SS 304 and 316 bolts, nuts, washers, and screws, adhering to DIN, ASTM, and ISO standards. We offer global export services along with test certificates.

Product Description:
STAINLESS INDIA is a reputable manufacturer and exporter of high-quality Stainless Steel Fasteners, which include bolts, nuts, washers, screws, threaded rods, and custom precision fasteners. Designed for durability, strength, and resistance to corrosion, our SS fasteners are utilized in some of the most challenging industries around the globe.
Our fasteners are available in grades such as SS 304, 316, 310, 321, 410, and Duplex 2205, and are produced in compliance with DIN, ASTM, BS, ANSI, ISO, and JIS standards. We provide full quality assurance, test certificates, and optional third-party inspection.

Product Range

Types of Stainless Steel Fasteners We Manufacture

Stainless Steel Bolts

  • Hex Head Bolts, Allen Cap Screws
  • Carriage Bolts, Eye Bolts
  • U-Bolts & J-Bolts
  • Stud Bolts / Double Ended Studs

Stainless Steel Nuts

  • Hex Nuts, Lock Nuts
  • Nylock Nuts, Dome / Cap Nuts
  • Wing Nuts
  • Flange Nuts

Stainless Steel Screws

  • Self Tapping Screws, Machine Screws
  • Wood Screws, Socket Head Screws
  • Pan Head / CSK Screws

Stainless Steel Washers

  • Plain / Flat Washers
  • Spring / Lock Washers
  • Serrated Washers
  • Fender Washers, Star Washers

Threaded Rods / Studs

  • SS 304 / 316 Fully Threaded Rods
  • Cut Lengths with Chamfered Ends
  • Custom Threading (BSP/NPT/Metric)
Technical Specifications

Stainless Steel Fasteners Specifications

Product Range Bolts, Nuts, Washers, Screws, Stud Bolts, Threaded Rods, U Bolts, Eye Bolts, Anchor Bolts, Custom Fasteners
Material Grades SS 304, 304L, 316, 316L, 310, 310S, 321, 347, 347H, 410, Duplex 2205, Super Duplex 2507
Standards ASTM, DIN, ISO, ANSI, BS, JIS
Thread Types Metric, UNC, UNF, BSW, BSP, NPT
Size Range M3 to M100 | 1/8" to 4"
Length Standard & Custom Length Available
Finish Plain, Passivated, Electro Polished, PTFE Coated, Black Oxide
Manufacturing Cold Forged, Hot Forged, CNC Machined
Inspection PMI, Hardness Test, Tensile Test, Dimensional Inspection, Visual Inspection
Certification EN 10204 3.1, EN 10204 3.2, Third Party Inspection
Packaging Wooden Boxes, Export Cartons, Pallets, Customized Export Packing
Supply India, Middle East, Europe, USA, Africa, Southeast Asia and Worldwide
Manufacturing Excellence

Manufacturing, Quality Control & Testing

Manufacturing Process

Stainless Steel Fasteners are manufactured using premium stainless steel raw materials through cold forging, hot forging, CNC machining, thread rolling, heat treatment, passivation and precision finishing processes. Every stage is monitored to maintain dimensional accuracy and consistent product quality.

  • Premium stainless steel raw material selection
  • Cold & hot forging
  • CNC machining
  • Precision thread rolling
  • Heat treatment where applicable
  • Surface finishing & passivation
  • Final inspection before dispatch

Quality Assurance

Every fastener is inspected according to international quality standards before shipment. Inspection records are maintained to ensure complete traceability for industrial and export projects.

  • Positive Material Identification (PMI)
  • Dimensional Inspection
  • Tensile Testing
  • Hardness Testing
  • Visual Inspection
  • Thread Gauge Inspection
  • Mill Test Certificate EN 10204 3.1
  • Third Party Inspection (TUV, BV, SGS, LR, DNV) available
Complete Buying Guide

How to Select the Right Stainless Steel Fasteners

Things to Consider Before Buying

  • Select the correct stainless steel grade (304, 316, 321, 347, Duplex or Super Duplex).
  • Confirm operating temperature and pressure.
  • Choose the correct thread type (Metric, UNC, UNF, BSP or NPT).
  • Select the required bolt strength and tensile properties.
  • Consider corrosion resistance for marine and chemical environments.
  • Verify international standards such as ASTM, DIN, ISO, ANSI or BS.
  • Ensure Mill Test Certificate (EN 10204 3.1) is available.
  • Request third-party inspection when required.

Industries We Serve

  • Oil & Gas Industries
  • Petrochemical Plants
  • Power Generation Projects
  • Offshore & Marine Engineering
  • Shipbuilding Industry
  • Food Processing Plants
  • Pharmaceutical Industry
  • Chemical Processing Plants
  • Water Treatment Projects
  • Sugar & Cement Plants
  • Infrastructure & Construction
  • EPC Contractors & OEM Manufacturers

Why Stainless Steel Fasteners Are Preferred Worldwide

Stainless steel fasteners offer excellent corrosion resistance, outstanding mechanical strength, long service life and low maintenance requirements. They perform exceptionally well in aggressive environments such as offshore, marine, petrochemical and chemical processing plants where conventional carbon steel fasteners may fail due to corrosion.

At STAINLESS INDIA, every fastener is manufactured to stringent quality standards using modern production techniques and advanced inspection procedures to ensure reliable performance in critical industrial applications worldwide.

Material Specifications

Available Grades

Grade Family Available Specifications
Austenitic SS 300 Series
304 / 304L 316 / 316L 310 / 310S 321 / 347
Martensitic / Ferritic
SS 410 SS 430
Duplex & Alloys
Duplex 2205 Super Duplex 2507 Inconel Monel Hastelloy
Our Expertise

Why STAINLESS INDIA Stainless Steel Fasteners Are Trusted Worldwide?

ISO Certified

ISO 9001:2015 Certified Manufacturer ensuring top-tier quality management.

Huge Selection

Comprehensive selection of cold-forged, hot-forged, and machined fasteners.

100% Tested

Complete 100% PMI, hardness, and dimensional testing before dispatch.

Superior Strength

Exceptional tensile strength and outstanding resistance to corrosion.

Ready Stock

Ample ready stock available for urgent shipments worldwide.

Export Packing

Export packaging in cartons and wooden crates for safe transit.

Global Reach

Supplying high-quality fasteners to over 40 countries globally.

Custom Made

Custom fasteners manufactured strictly according to your specifications.

Applications

Oil & Gas Refineries
Petrochemical Plants
Water Treatment Projects
Food & Beverage Equipment
Structural Installations
Marine Installations
Pharma & Clean Room
Power & Energy Projects
Offshore Platforms

Standards & Certifications

  • ASTM A193 / A194
  • DIN 931 / 933 / 934 / 976
  • ISO 4014 / 4017
  • BS 4882, JIS B1180
  • EN 10269
  • EN 10204 3.1 / 3.2 Certificates
  • NACE MR0175 Compliance (on request)
Our Advantage

Why Choose STAINLESS INDIA for SS Fasteners?

Why Choose STAINLESS INDIA for Stainless Steel Fasteners?

In-House CNC

In-house CNC manufacturing and threading for precision components.

ISO Certified

ISO 9001:2015 certified quality control systems.

Extensive Stock

Extensive ready stock in SS 304, 316, and 310 grades.

Prompt Delivery

Prompt delivery with reliable international shipping.

Custom Sizes

Custom size manufacturing according to exact specifications.

Competitive Value

Competitive pricing with third-party inspection available.

Frequently Asked Questions – Stainless Steel Fasteners

SS 316 / 316L is recommended due to its molybdenum content, providing excellent corrosion resistance in saltwater conditions.

We supply SS 304, 304L, 316, 316L, 310, 310S, 321, 347, Duplex 2205, Super Duplex 2507 and other special alloy grades.

Stainless steel fasteners are widely used in oil & gas, petrochemical, marine, offshore, power plants, pharmaceutical, food processing, water treatment and construction industries.

Yes. Every shipment can be supplied with EN 10204 3.1 Mill Test Certificates and additional documentation when required.

Yes. We manufacture custom bolts, nuts, threaded rods and special fasteners according to customer drawings and project specifications.

Our products comply with ASTM, DIN, ISO, ANSI, BS and JIS standards depending on customer requirements.

Yes. Third-party inspection by agencies such as TUV, BV, SGS, LR and DNV can be arranged upon request.

Yes. We export stainless steel fasteners to more than 70 countries with complete export documentation and secure packaging.

Standard sizes from M3 to M100 and imperial sizes are available, with custom dimensions manufactured on request.

We offer certified quality, modern manufacturing, ready stock, competitive pricing, worldwide delivery, technical support and complete documentation for industrial projects.

Yes. We offer PTFE coated, black oxide, electro-polished, and passivated stainless steel fasteners upon request.

Certainly. We manage bulk orders for EPC contractors, OEMs, and global distributors, complete with all necessary documentation and test reports.

Learn more about stainless steel materials, fastener selection, corrosion resistance and industrial applications by reading our latest technical blogs. Read Our Blogs

Explore Our Stainless Steel Product Range

STAINLESS INDIA offers a complete range of stainless steel products for industrial and engineering applications. Along with Stainless Steel Fasteners, we also manufacture and supply Stainless Steel Pipes, Stainless Steel Sheets & Plates, Stainless Steel Round Bars, Stainless Steel Butt Weld Fittings, Stainless Steel Forged Fittings, and Stainless Steel Flanges. All products are manufactured according to ASTM, ASME, DIN and ISO standards and are supplied worldwide with Mill Test Certificates (EN 10204 3.1), third-party inspection and export-quality packaging.

Type of Fastener Available

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Export & Technical Information

Packaging, Storage & Product Comparison

Export Packaging

  • Moisture-proof export packaging
  • Heavy-duty corrugated cartons
  • Wooden boxes and fumigated crates
  • Palletized export packing
  • Heat number identification
  • Barcode & product labeling
  • Custom packaging available

Storage Recommendations

  • Store in a dry indoor environment.
  • Avoid direct contact with carbon steel.
  • Protect threads from mechanical damage.
  • Keep products in original packaging until use.
  • Prevent exposure to moisture and chemicals.

SS 304 vs SS 316 Fasteners

Feature SS 304 SS 316
Corrosion Resistance Very Good Excellent
Marine Service Limited Highly Recommended
Chemical Resistance Good Superior
Temperature Resistance High Very High
Typical Applications General Industrial Use Marine, Offshore & Chemical Plants

Global Export Network

We export to more than 70+ countries:

USA • UK • Germany • Italy • UAE • Saudi Arabia • Qatar • Oman • Kuwait • Singapore • Malaysia • Indonesia • Australia • South Africa • Brazil • Mexico • India

All Shipments Include:
  • Packing List
  • Invoice
  • MTC 3.1 / 3.2
  • Third-Party Inspection (TUV/LR/BV) if required
  • Heat Number Traceability

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