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The Fasteners Mart, established in Mumbai, India, is a prominent manufacturer and exporter of industrial-grade fastening solutions renowned for providing precision, durability, and reliability across industries. We have a wide range of products available, including Stainless Steel 347 Fasteners. These fasteners are produced using Grade 347 austenitic stainless steel, stabilized with niobium (columbium), and are produced in several shapes such as bolts, nuts, screws, washers, and studs. Specially made for service at high temperature and intergranular corrosion, these fasteners are best suited for thermal cycling and exposure to extreme environments.
Stainless Steel 347 Fasteners are made up of chromium (17–19%), nickel (9–13%), carbon (≤0.08%), and stabilization by niobium (columbium) with small amounts of manganese, silicon, and phosphorus. They have good creep strength, tensile strength (515–750 MPa), and yield strength of approximately 205 MPa. Their physical features consist of a density of 7.93 g/cm³ and melting point of 1398–1446°C. These fasteners are resistant to intergranular corrosion, and hence they can be used for high temperature service without any loss of structural integrity or mechanical performanc
| Fasteners Material Specification | ASTM A194, ASME SA193, UNS S31609 Bolts |
|---|---|
| Standard | DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards |
| Fasteners/ Bolts Size | M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160 |
| Length | 3 mm to 200 mm |
| Bolts, Studs Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
| SS 316h Fasteners Standard: | ANSI – American National Standards Institute
|
| Source of raw materials | Tata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc. |
| SCOPE OF MANUFACTURE |
|
| Fasteners In Form of: | Hex, Square, Round, Threading as per Gauge Etc. |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe, etc |
| bolting Test Certificate: | Manufacturer Test Certificate as per EN 10204 / 3.1 |
| Fasteners finishing: | Zinc (yellow, white, blue, black), black oxide, Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET |
| Production process | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| bolting materials Surface Coating: |
|
| Popular Types of SS 316h Bolts | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts etc. |
| Popular Types of SS 316h Nut | Hex Head Nut, Eye Nut, Dome Nut, Wing Nut, T Nut, Panel Nut, Lock Nut, Coupling Nut, Square Nut, Acorn Nut etc. |
| Popular Types of SS 316h Screw | Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Blind Rivet, Socket Head Screws, Concrete Screws, Shoulder Screws, Panel Screws, Threaded Screws, Machine Screws etc. |
| Popular Types of SS 316h Washer | Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer, Split Washer etc. |
| Our stockyad location for fast delivery in India | Noida, Bengaluru, Pimpri-Chinchwad, Thiruvananthapuram, Tirunelveli, Vasai, Dhanbad, Chennai, Agra, Nagpur, Hyderabad, Kolkata, Coimbatore, Pune, Jaipur, Tiruchirappalli, Shivamogga, Ahmedabad, surat, Bhubaneswar, Thane, Nashik |
| Fasteners Packing: | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
|
316H |
Min |
0.04 |
0.04 |
0 |
– |
– |
16.0 |
2.00 |
10.0 |
– |
|
max |
0.10 |
0.10 |
0.75 |
0.045 |
0.03 |
18.0 |
3.00 |
14.0 |
– |
|
Grade |
Tensile Str
(MPa) min |
Yield Str
0.2% Proof
(MPa) min |
Elong
(% in 50mm) min |
Hardness |
|
|
Rockwell B (HR B) max |
Brinell (HB) max |
||||
|
316H |
515 |
205 |
40 |
95 |
217 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 347 Fasteners find excellent applications in high-temperature applications across aerospace, petrochemical, power plant, and heat exchanger industries. Their application is widespread in furnace components, boilers, chemical processing units, and exhaust systems because of their properties against intergranular corrosion and thermal fatigue. Their resistance to high-temperature stability makes them suitable for welding processes and processes involving thermal cycling. Across pressure vessels and refineries, these fasteners deliver reliable performance in severe operating conditions.
Fasteners Mart guarantees prompt delivery of Stainless Steel 347 Fasteners to international and domestic customers. Products are safely packed in moisture-resistant materials, wooden crates, or heavy-duty cartons to avoid damage. Each package is properly labeled for traceability and handled carefully to ensure safe delivery and customer satisfaction.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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