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At Hazlewood Fasteners, we manufacture and supply premium-quality Hastelloy Screws in Canberra, Australia, designed to perform exceptionally in the world’s most corrosive and high-stress environments. Engineered from a nickel-molybdenum-chromium-based superalloy, these screws deliver unmatched resistance to oxidizing and reducing agents. Known for their durability, toughness, and chemical stability, Hastelloy Screws maintain strength even under extreme heat and pressure. Whether used in chemical processing plants, marine environments, or power generation systems, our screws ensure long-lasting fastening performance and reliability where standard stainless steel fasteners cannot survive.
Hastelloy Screws are primarily composed of nickel (55–65%), molybdenum (15–30%), and chromium (12–23%), with trace elements such as iron, tungsten, cobalt, and manganese to improve strength and corrosion resistance. They provide an exceptional tensile strength up to 790 MPa and yield strength around 355 MPa, while maintaining ductility and toughness at elevated temperatures. The alloy offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, making Hastelloy Screws the ideal choice for use in harsh chemical or marine environments where performance and longevity are critical.
| Standard | IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards |
|---|---|
| Threads: | BSF, UNF METRIC, UNC, BSW or as required |
| Standard | ANSI – American National Standards Institute
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| Fasteners/ Bolts Size | M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160 |
| Length | 3 mm to 200 mm |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe etc |
| Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Finishing | Zinc white, (yellow, black, blue), black oxide, Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating |
| raw materials of Source | JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc. |
| Form | Square, Hex, Threading as per Gauge, Round Etc. |
| Process of Production | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| Surface Coating |
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| Packing | IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request |
| Grade | C | Mn | Si | Co | S | Ni | Cr | Fe | Mo | W | V | P |
| Hastelloy Fasteners | 0.010 max | 1.0 max | 0.08 max | 2.5 max | 0.03 max | Bal | 14.5 – 16.5 | 4 – 7 | 15 – 17 | 3 – 4.5 | 0.35 max | 0.04 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy Fasteners | 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40 % |
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.
Hastelloy Screws are extensively used in chemical and petrochemical industries, marine engineering, aerospace applications, and pollution control systems. They are perfect for securing components in heat exchangers, pressure vessels, reactors, and gas scrubbers exposed to strong acids and corrosive gases. In offshore and marine environments, they resist damage from seawater, brine, and salt spray, ensuring long-term stability. Hastelloy Screws are also used in nuclear plants and aerospace assemblies, where precision and material integrity are paramount. With exceptional reliability, Hazlewood Fasteners’ Hastelloy Screws guarantee performance where ordinary materials fail.
We take extra care while packing the Hastelloy screws that we offer to our clients at Hazlewood Fasteners. Every screw is covered with protective material to ensure that they do not get damaged, rust or get contaminated when in transit. We offer reliable packaging in the form of cartons and also have special packaging that meets your requirements. Our products are packed and labeled properly to ensure that identification and handling is done efficiently to show our readiness to provide high quality products in their best state.
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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