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At Hazlewood Fasteners in Canberra, we design fastening solutions that embody endurance and precision. Our stainless steel 347 fasteners are built for extreme environments where heat, corrosion, and stress converge. Niobium-stabilized for superior resistance to intergranular corrosion, these fasteners maintain their strength and integrity under high-temperature conditions. Ideal for industrial, marine, and structural applications, they deliver long-term stability, even through constant thermal cycling. When you choose Hazlewood Fasteners’ 347 fasteners, you’re choosing components that stand firm—crafted to secure, strengthen, and sustain your most critical assemblies with uncompromising engineering excellence.
Stainless steel 347 fasteners are made from a chromium-nickel austenitic stainless steel alloy stabilized with niobium (columbium). This stabilization prevents carbide precipitation during welding and high-temperature exposure, enhancing corrosion resistance and durability. They exhibit excellent mechanical strength, oxidation resistance, and toughness up to 870°C. The alloy’s balance of ductility and hardness ensures dependable performance under mechanical and thermal stress. With superior weldability and long-term stability, 347 fasteners provide exceptional protection against intergranular corrosion while maintaining their structural integrity across demanding industrial applications.
| 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 excel in high-temperature, corrosive, and mechanically demanding environments. They are widely used in refineries, power plants, heat exchangers, and furnace systems where oxidation resistance and thermal stability are vital. In chemical processing, aerospace, and marine industries, they provide secure fastening in corrosive atmospheres and under heavy mechanical loads. Their niobium-stabilized composition ensures reliable performance in welded structures and high-pressure systems. Whether anchoring structural frameworks or sealing thermal assemblies, Hazlewood Fasteners’ 347 fasteners offer enduring strength, precision, and reliability—connecting the critical components that keep industries moving forward with confidence.
We ensure that our Stainless Steel 347 fasteners are installed with the utmost care to preserve their quality and performance at Hazlewood Fasteners. Our durable packaging solutions protect fasteners from damage using durable materials and safe processes. Each package is labelled with detailed ingredient information for easy identification and inventory management. Whether for small or large orders, our careful packaging process assures that your stainless steel 347 fasteners arrive in perfect condition, ready for immediate application in a strong.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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