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At Hazlewood Fasteners in Canberra, we craft precision components that turn engineering vision into enduring strength. Our stainless steel 347 nuts are built to perform under pressure—designed for superior resistance to heat, corrosion, and mechanical fatigue. Stabilized with niobium, these nuts retain their structural integrity even in welded or high-temperature applications. Whether used in petrochemical systems, marine environments, or industrial power assemblies, Hazlewood Fasteners’ 347 nuts embody reliability and resilience. They don’t just hold structures together—they hold together the trust, stability, and performance that drive the world’s toughest operations forward.
Stainless steel 347 nuts are manufactured from a niobium-stabilized austenitic stainless steel alloy containing chromium and nickel. The niobium addition prevents carbide precipitation, preserving corrosion resistance during welding and prolonged heat exposure. These nuts exhibit excellent mechanical strength, toughness, and oxidation resistance up to 870°C. With exceptional ductility and dimensional stability, they maintain a secure grip under dynamic loads and extreme temperature fluctuations. Engineered for high performance, 347 nuts deliver a balanced combination of strength, corrosion resistance, and longevity in the harshest industrial environments.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347 | min. | – | – | – | – | – | 17.0 | 2.00 | 9.0 | – |
| max. | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 20.0 | 3.00 | 13.0 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347 | 515 | 205 | 40 | 95 | 201 |
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 nuts are engineered for use in high-temperature and corrosive environments where conventional stainless steels may fail. They are extensively utilized in power generation, heat exchangers, boiler systems, and refinery equipment. Their stability under thermal cycling makes them ideal for chemical processing plants, marine structures, and aerospace applications. These nuts maintain secure, vibration-resistant fastening in welded assemblies and heavy-duty industrial installations. Hazlewood Fasteners’ 347 nuts represent the intersection of science and strength—crafted to endure heat, resist corrosion, and ensure every connection remains steadfast, precise, and built to last.
At Hazlewood Fasteners, we ensure that our Stainless Steel 347 nuts are installed with the utmost attention to detail to maintain their quality and functionality. Our packaging solutions use sustainable materials and safe processes to protect the fruit from damage during transportation and handling. Each item is carefully detailed to facilitate identification and proper inventory management. Our precise packaging assures that your stainless steel 347 nuts arrive in perfect condition, ready for critical use, whether for small or bulk orders.
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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