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Hamad Fasteners, based in Riyadh, Saudi Arabia, is your go-to source for top-notch fastening solutions tailored for high-performance industrial needs. Our Stainless Steel 310 and 310S Nuts are specifically designed to endure extreme heat, oxidation, and corrosion. These high-temperature austenitic stainless steel nuts are perfect for settings that demand strength and stability under thermal stress. Whether they’re in use in furnaces, heat exchangers, or petrochemical systems, our 310/310S nuts provide reliable fastening even in the toughest conditions. At Hamad Fasteners, we adhere to international quality standards, ensuring that our fasteners are durable and dependable for your most challenging projects.
Our Stainless Steel 310 / 310S Nuts are crafted from an austenitic stainless steel alloy that includes 24–26% chromium and 19–22% nickel, giving them exceptional resistance to oxidation and scaling at temperatures reaching up to 1100°C. The 310S grade features a lower carbon content compared to 310, which enhances its weldability and minimizes the risk of carbide precipitation. These nuts boast a tensile strength of 515–750 MPa and a yield strength of 205–310 MPa, with Brinell hardness ranging from 150–220 HB. Both grades excel in creep resistance and maintain mechanical stability under high-temperature service conditions.
| Specifications | ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
|---|---|
| Fasteners size | Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Machine Screws Size : M1.6 – M12 Self Tapping Screw Size : No.2 – No. 14 |
| Fasteners Length | 3 mm to 200 mm |
| Fastener Threads | UNF, BSW, BSF, METRIC, UNC or as required |
| Standard of Stainless Steel Fasteners | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard SS Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 SS Hex nuts |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Surface Coating | Ptfe Coated Stainless Steel Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
| Fasteners Finishing | Stainless steel : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Stainless Steel, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide. |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
SS 310 | 0.015 max | 2.0 max | 0.15 max | 0.020 max | 0.015 max | 24.00 – 26.00 | 0.10 max | 19.00 – 21.00 | 54.7 min |
SS 310S | 0.08 max | 2.0 max | 1.00 max | 0.045 max | 0.030 max | 24.00 – 26.00 | 0.75 max | 19.00 – 21.00 | 53.095 min |
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 310 / 310S Nuts are commonly found in high-temperature and corrosive environments, including furnaces, kilns, thermal processing systems, heat exchangers, and chemical plants. Their high chromium and nickel content enables them to resist oxidation, sulfidation, and carburization. The 310S grade is particularly favored for welded applications due to its lower carbon content. These nuts are perfect for securing components that face continuous thermal cycling, extreme heat, and corrosive gases, making them a trusted choice for industries such as metallurgy, petrochemicals, power generation, and exhaust system manufacturing.
Hamad fasteners ensure uniqueness for all stainless steel 310/310S nuts through rigorous testing procedures before shipment. Our tests include hardness, Spectro analysis, PMI testing, flattening, fine and coarse testing, pitting resistance, flare, and intergranular corrosion (IGC) testing. We provide comprehensive documentation, including commercial invoices, packaging information, departure certificates and exit documents. To ensure absolute customer satisfaction, we also offer third-party inspection certificates, which prove our fruits’ high quality and reliability in various technical applications.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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