Weston Stainless, Midland, UK, is a renowned manufacturer and distributor of high-quality stainless steel products to industries including construction, automotive, marine, and chemical processing. The organization specializes in providing corrosion-resistant solutions of high quality for challenging applications. One of its major products is Stainless Steel 304H Nuts, produced from high-carbon 304H stainless steel, providing high strength and heat resistance. These nuts come in hex, square, lock, flange, and coupling forms and are ideal for structural and high-temperature applications where reliability, durability, and corrosion resistance are a priority in commercial and industrial settings.
Stainless Steel 304H Nuts contain 18-20% chromium, 8-10.5% nickel, 0.04-0.10% carbon, ≤2% manganese, ≤1% silicon, ≤0.045% phosphorus, and ≤0.03% sulfur, exhibiting improved strength and corrosion resistance. Their mechanical characteristics are tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%, which helps in maintaining durability in high-stress conditions. The physical characteristics have a density of 8.0 g/cm³, melting range of 1399-1454°C, and thermal conductivity of 16.2 W/m·K, making them suitable for high-temperature, structural, and industrial fastening applications with high demands on thermal and mechanical performance.
| Specifications | DIN, ISO ,JIS ,GB, IS, BS, ASTM |
| Standard | ASTM A193 / A194, ASME SA193 / SA194 |
| Size | M2 – M100 |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions Standard | DIN: DIN931, 933, 934, 7991, 976, 125 ISO: ISO 4033, 4032 ASME B18.5, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304H | min. | 0.04 | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | – | 10.5 | – | |
| 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 | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
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Designed for high-stress environments, these nuts provide excellent corrosion resistance and durability. Available in sizes ranging from M6 to M36, they are ideal for chemical, petrochemical, and power generation applications.
Ideal for joining threaded rods, these coupling nuts offer high strength and temperature resistance. Available in sizes from M6 to M36, they are suitable for industrial applications such as piping systems and machinery assemblies.
Secure fastening and vibration resistance. Available in sizes from M6 to M24, they ensure a tight fit and prevent loosening, making them perfect for machinery and automotive applications.
Featuring integrated flanges for extra support, these SS 304H nuts provide enhanced load distribution and stability. Available in sizes from M6 to M24, they are ideal for use in heavy-duty equipment and construction projects.
Superior strength for heavy-duty applications, these SS 304H nuts are designed for high-pressure and high-temperature environments. Available in sizes from M6 to M36, they are perfect for boilers and heat exchangers.
A large surface area for effective torque application. Available in sizes from M6 to M24, they are ideal for secure fastening in tight spaces within industrial machinery and structural applications.
Stainless Steel 304H Nuts are composed of 18-20% chromium, 8-10.5% nickel, 0.04-0.10% carbon, ≤2% manganese, ≤1% silicon, ≤0.045% phosphorus, and ≤0.03% sulfur, providing enhanced strength and corrosion resistance. Their mechanical properties include a tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%, ensuring durability in high-stress environments. The physical properties feature a density of 8.0 g/cm³, a melting range of 1399-1454°C, and thermal conductivity of 16.2 W/m·K, making them ideal for high-temperature, structural, and industrial fastening applications requiring excellent thermal and mechanical performance.
Stainless Steel 304H Nuts include necessary test certificates, such as Mill Test Certificate (MTC) in accordance with EN 10204 3.1 or 3.2, Third-Party Inspection (TPI) reports, and results of Non-Destructive Testing (NDT) for compliance with quality standards. They are properly packed in wooden crates, cartons, or plastic-wrapped bundles to avoid damage when handling and shipping. Prompt delivery is facilitated via road, sea, or air transport for efficiently meeting the world’s industrial standards.







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