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Industrial Overview: India's Leading SS Fastener Manufacturer
- Product Range: Bolts, Nuts, Studs & Washers
- Why Stainless Steel? Core Advantages
- Manufacturing Excellence: Forging & Threading Technology
- Technical Data: SS 304 vs. 316 Comparison
- Weight Chart & Dimension Table (M4 to M100)
- List of Top range of Stainless Steel Products Exported from India
- Industry Verticals: Railways, Oil & Gas, Construction
- Geographical Reach: Serving 28 States & Global Exports
- Quality Assurance & Certification (MTC 3.1)
- FAQ: Expert Procurement Guide
Industrial Overview: India's Leading SS Fastener Manufacturer
Stainless Bolt Industries has become an industry leader in the manufacture of Stainless Steel (SS) Fasteners since its start in 1982. Using precise engineering solutions along with durable industrial strength, we supply SS fasteners made from 304, 316, and 310 grade materials to the core industries in India, including but not limited to the heavy industrial areas in Maharashtra and Gujarat along with the expanding infrastructure of West Bengal and Tamil Nadu. We are considered the foundation for safe, secure industrial assembly.
Comprehensive Product Range
As a multi–faceted Supplier of SS fasteners, we carry:
Industrial Bolts – Hex Head, SS SQ Neck Bolts, Heavy Hex, Eye Bolts.
Precision Nuts – Hex Nuts, SS 304 Anti Theft Nuts, Lock Nuts, Wing Nuts.
Specialty Flat Washers – plain, spring, and internal/external star washers.
Studs & Rods – Full Threaded Rods, Double End Studs, B8M Studs.
According to experts in the field, stainless steel fasteners have distinct benefits over other materials. The main advantages added:
• Corrosion Resistant – This is critical for: Marine, chemicals, and high-humidity areas.
• Thermal Resistance – Will maintain strength during cryogenic or extremely hot applications.
• Aesthetic Is Appeal – Will give a clean and modern look to aesthetically visible structural components.
• Durability – Stainless steel fasteners generally can outlast their counterparts, so they can provide substantial cost savings on operational and maintenance costs in the long run.
Why Stainless Steel? Core Advantages
According to experts in the field, stainless steel fasteners have distinct benefits over other materials. The main advantages added:
Corrosion Resistant
Critical for marine, chemical, and high-humidity environments.
Thermal Resistance
Maintains strength during cryogenic and extremely hot applications.
Aesthetic Appeal
Provides a clean and modern look for visible structural components.
Durability
Stainless Steel Fastners generally can outlasts counterparts and reduces long-term maintenance costs.
Fasteners
Manufacturing Excellence: Forging & Threading Technology
We achieve operational excellence through three main manufacturing processes. Our facility located in Ahmedabad has the ability to:
Cold Forging (M2-M30)
Provide loads of high-tensile strength precision in mm from M2 to M24; The standard method for high-speed production of bolts and screws. During the manufacturing process, the material is “work-hardened” during deforming operations, which creates a finished product with improved physical strength and exceptional surface finish.
Hot Forging (Greater than M30 and longer than 300mm)
Fulfilling the need for 304 J bolts as well as large footing anchor bolts. Used to create large-diameter bolts and fasteners greater than 300mm in length. The bar stock is heated to an elevated temperature which allows the production of complex shapes and creates high-strength fasteners used in heavy infrastructure.
Machining & Roll Threading
We always prefer rolled threads versus cut; this allows us to have superior fatigue resistance, which is important as being a Nut Bolt Railway Vendor.
Technical Specifications
SS 304 vs. 316 Comparison
| Feature | Grade 304 (A2) | Grade 316 (A4) |
| Chemical Composition | 18% Cr, 8% Ni | 16% Cr, 10% Ni, 2% Mo |
| Corrosion Resistance | High (Standard Industrial) | Superior (Marine & Chloride) |
| Best For | Food, Pharma, Construction | Oil & Gas, Chemical, UAE Export |
Weight Chart & Dimension Table
| Size (mm) | Pitch (mm) | Across Flat (mm) | Weight (kg) per 100 Pcs (50mm Length) |
|---|---|---|---|
| M8 | 1.25 | 13 | 3.10 |
| M10 | 1.50 | 17 | 5.20 |
| M12 | 1.75 | 19 | 8.15 |
| M16 | 2.00 | 24 | 15.40 |
List of Top range of Stainless Steel Products Exported from India
High-Performance SS 316 Fasteners Manufacturing Authority
The ever-expanding scope of industrial growth in India has made Stainless Bolt Industries a leading manufacturer of stainless steel (SS) fasteners. As a manufacturer, our business is defined by the design and production of SS fasteners utilizing high-speed cold forging and precision thread rolling techniques. Our operation as one of the premier SS Dealers in Ahmedabad, Gujarat, offers delivery services for customers in the chemical, pharmaceutical, and engineering sectors across Gujarat and the surrounding states as “Just-in-Time” deliveries (JIT). By offering our customers JIT deliveries of high-quality SS fasteners, we provide them with access to the highest quality fasteners while still supporting local availability.
In addition to providing our customers with SS fasteners in bulk or wholesale quantities, we are also an emerging self-tapping screw manufacturer throughout India. Our ability to manufacture high-quality screws utilizing premium-grade SS wire is accomplished through our use of various types of SS wire grades to create and provide customers with the most durable and corrosion-resistant screws available for applications related to bus body construction, electronic assembly, and steel furniture assembly. Ultimately, our focus on the production of high-volume SS fasteners and the availability of a wide variety of specialty fasteners ensures that we will be able to efficiently serve both high-volume export customers and smaller domestic customers.
A2, A4 & Grade 316 Fasteners Manufacturer in India
A2 and A4 stainless steel each play an important role in how engineering materials stand up to the elements—especially severe environments. A2 (SS 304) has been the industry workhorse for general construction and food processing; however, if you are in an acidic or marine environment, you should be looking at our 316 Stainless Steel Fasteners as your first choice. With the addition of 2-3% molybdenum, our Grade 316 stainless steel fasteners will far exceed the ability of standard-grade stainless steel fasteners (A2) to resist pitting and crevice corrosion due to chlorides in coastal infrastructure.
Our company can supply procurement managers/engineers with detailed technical information, including the SS DIN HEX BOLT WEIGHT data for both the DIN 933 and DIN 931 standards. High-tensile fasteners (i.e., class A4-70 & A4-80) can withstand thermal and chemical stresses and maintain structural integrity. This detailed technical data will give your clients an accurate specification to use when selecting the correct grade and weight for their particular safety and performance criteria.
Specialized Anchoring: J-Bolts, U-Bolts & Anti-Theft
As an SS Anchor Bolt Manufacturer in India, we excel in specific areas:
SS 304 J-Bolts are made to order for heavy-duty foundation applications.
SS 304 U-Bolts are available in standard and custom sizes to support industrial piping.
Security Fasteners provides anti-theft bolt and nut products to businesses throughout Rajasthan and Delhi, enabling security for solar panels and public property.
SS Wedge Anchor Precision Components
Our engineering skills put us on the map as one of the leading manufacturers of stainless steel anchor bolts in India, producing a full complement of foundation options for heavy permanent buildings (infrastructure). Our specialty is Wedge Anchors, J-bolts, I-bolts, and L-bolts (all stainless steel) that create permanent and higher load anchoring into concrete and masonry surfaces. All of these products are made from raw stock that has been extensively tested to ensure that they will hold up to natural elements such as rain, chemicals, and vibration without failure.
Along with heavy-duty structural anchors, we also have a stronghold in the specialized precision industry as one of the top dealers of stainless steel brake nuts in India. Additionally, we have a full selection of high-quality star washer variants (internal star washers, external star washers DIN 6797/6798) that are critical components for keeping fastener connections secure and tight when subjected to the high levels of vibration typically seen in the automotive and electrical fields. Whether it’s for the foundation of a high-rise or for an electronic circuit, our full range of nuts, washers, and anchors provides you with the appropriate level of locking and stability needed in today’s modern engineering environment.
Industry-Specific Fastening Applications

Rail Industry
We are an Approved Supplier of Nut and Bolt Products for Rail Track and Rolling Stock with Reference to Railway Needs for Rail Joints and Rolling Stock.

Marine Industry
Marine Site Specific SS 316 for offshore projects in UAE and Mumbai.

Energy Industry
Supplies to Large Scale Renewable Energy Projects with High Tensile Fasteners in Spain and India.
Market Presence: National Supply & Global Export Operations
In India, Stainless Bolt Industries has developed an enviable supply chain, connecting the local requirements of just-in-time delivery to the global engineering standards required for industrial supply. Regardless if you are requesting fasteners for a construction project in Gujarat or an offshore oil rig in the United Arab Emirates, Stainless Bolt Industries has constructed a logistics network that guarantees your rapid, accurate delivery.
1. Domestic Market: Support of India’s Industrial Corridors
Through our distribution centers located across the country, we are a leading Stainless Steel Bolt Supplier whose sales are primarily to the following regions and industrial sectors:
Western India (Gujarat & Maharashtra):
To provide just-in-time service for the fastener supply needs of our customers in Western India, we have our primary manufacturing and distribution centre in Ahmedabad. We are the supplier of choice for high-grade fasteners to the chemical, pharmaceutical, and automotive industries in this region through our distribution from Ahmedabad to Mumbai, Pune, Surat, and Rajkot.
Southern India (Tamil Nadu & Karnataka):
In the Southern region of India, we provide fasteners primarily to the heavy engineering and seaport industries of Chennai, Coimbatore, and Bangalore, as well as the textile machinery and electronics manufacturing industries in the South.
Rajasthan
The state of Rajasthan is one of the principal suppliers of specialized SS 304 anti-theft nuts and bolts for large-scale solar power projects located throughout Jodhpur and Jaipur.
Northern & Eastern India (West Bengal, Punjab & Delhi-NCR):
In addition to our distribution points, we are the trusted supplier of specialized fasteners for railway infrastructure projects in Delhi and Kolkata. We also provide fasteners to the thermal power generation and mining industries in Chhattisgarh (Raipur) and to manufacturing hubs in Punjab.
2. International Market: Global SS Fasteners Exporter
We have established a solid track record as a trusted SS fastener exporter due to our adherence to many international standards, such as ASTM, DIN, ISO, and JIS. This allows us to oversee the complete export cycle, from special packaging through international customs documentation for all of our products.
Middle East: UAE & Sri Lanka
We are a significant manufacturer of SS 316 fasteners, which are standard in the oil and gas refinery and desalination facility industries based in the region (Dubai and Abu Dhabi). Our A4-70 and A4-80 bolts are marine grade fasteners designed to give you all of the corrosion resistance necessary for connecting and securing structural components in extremely saline environments like the Persian Gulf or along the coast of Sri Lanka.
Europe: Spain & Western Market
Spain and Western European markets are our primary focus for our high-strength stainless-steel bolts. These products comply with all EU environmental legislation and meet the rigorous requirements of the European renewable energy markets (wind and solar) as well as the precision-engineering automotive market in Spain.
South Asia: Bangladesh & Neighboring Countries
we supply large quantities of industrial fastening supplies, both in textiles, civil construction, and as part of bridge-building efforts. Our ability to produce such a large volume enables us to provide competitively priced products for large-scale infrastructure projects.
Rajasthan
The state of Rajasthan is one of the principal suppliers of specialized SS 304 anti-theft nuts and bolts for large-scale solar power projects located throughout Jodhpur and Jaipur.
Northern & Eastern India (West Bengal, Punjab & NCR):
In addition to our distribution points, we are the trusted supplier of specialized fasteners for railway infrastructure projects in Delhi and Kolkata. We also provide fasteners to the thermal power generation and mining industries in Chhattisgarh (Raipur) and to manufacturing hubs in Punjab.
Domestic Supply Centers:
– North: Delhi-NCR, Punjab, Rajasthan
– West: Gujarat(Ahmedabd), Maharashtra(Mumbai)
– South: Tamil Nadu(Chennai and Coimbatore), Bangalore
– East: West Bengal(Kolkata) and Chhattisgarh(Raipur)
International Export Network:
We have been recognized as a leader in the field of Fasteners made from Marine Stainless Steel SS 316 and maintain separate logistics for shipping to UAE, Spain, Sri Lanka and Bangladesh, etc.
Quality Assurance and Certification
Every bolt produced by us has gone through extensive testing at our NABL verified laboratory which includes the following tests:
PMI (Material Grade Verification)
To verify the exact chemical composition of every batch.
Tensile and Hardness Test
Ensuring structural integrity and resistance to intergranular corrosion.
Salt Spray Test (Corrosive)
To measure the product’s ability to resist high-rate loading.
MTC 3.1 Certification
Every consignment is accompanied by a Manufacturer Test Certificate to ensure full traceability.
FAQ: Expert Procurement Resource
Our combination of factory direct pricing & Certified Quality gives us this reputation.
Yes! We carry a huge inventory of Star Washers for the electrical and automotive industries.
Our standard size product lines can be shipped out on an immediate basis while most custom ordered products can be ready in 7-10 working days.
Grade 304 is used for most applications; grade 316 is suitable when using on marine/chemical applications.
J-Bolts are mainly used to secure to a concrete substrate, while U-bolts provide stable, secure support to piping in an industrial setting.
Yes. We manufacture customized/non-standard fasteners from our state-of-the-art facility using engineering drawings or SKUs.
