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Lina Fasteners is a dependable manufacturer and supplier based in Tunis, Tunisia, offering high-quality Stainless Steel 304H Nuts for demanding industrial environments. With a strong emphasis on precision manufacturing, quality assurance, and compliance with international standards, Lina Fasteners delivers fastening solutions that perform reliably under elevated temperatures. Stainless Steel 304H Nuts are valued for their higher carbon content, which enhances strength and heat resistance compared to standard 304 grades. Serving power generation, petrochemical, construction, and heavy engineering sectors, Lina Fasteners ensures durability, consistency, and trusted supply.
Stainless Steel 304H Nuts are made from an austenitic stainless steel alloy containing approximately 18–20% chromium and 8–11% nickel, with a higher carbon content ranging from 0.04–0.10%. This composition improves high-temperature strength and resistance to creep. Mechanically, SS 304H nuts provide good tensile and yield strength, excellent toughness, and stable performance under heat exposure. They remain non-magnetic in the annealed condition and offer reliable corrosion resistance in moderately aggressive environments.
| 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 |
| 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 |
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 304H Nuts are widely used in applications where both heat resistance and corrosion protection are required. They are commonly installed in boilers, heat exchangers, pressure vessels, and power plant equipment. In petrochemical and oil & gas industries, these nuts help maintain joint integrity under high temperatures and stress. They are also used in construction and heavy machinery exposed to thermal cycles. Their durability, strength, and long service life make them a dependable choice for critical fastening applications.
We ensure that we have complete documentation for our Stainless Steel 304H nuts. Commercial invoices, packaging documents, heat treatment charts, quality control charts, and NABL-approved reports on laboratory testing are included. Our commitment to quality extends to issuing various test certificates and our 304H products, such as MTC according to EN 10204/3.1b, PMI test certificate, and 100% radiography test report. To further strengthen customer satisfaction, we offer third-party inspection certificates, which prove our fruit’s quality and reliability for various applications and durability.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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