Khaled Stainless, located in Cairo, Egypt, specializes in providing Stainless Steel 310 nuts that are designed for high-temperature and oxidation-resistant fastening needs. These nuts are crafted with precision from certified SS 310 bar stock, adhering to strict dimensional and thread tolerances. They undergo heat treatment when necessary and come with complete material traceability. Khaled Stainless supplies 310 nuts for various applications, including furnace assemblies, boiler connections, petrochemical plants, and heavy industrial equipment, where high-temperature service is a regular occurrence. With a consistent surface finish, reliable stock levels, and expert advice on heat and assembly practices, Khaled Stainless is committed to ensuring long-term joint integrity in challenging thermal and oxidative environments.
Stainless Steel 310 is an austenitic alloy rich in chromium and nickel (approximately 24–26% Cr, 19–22% Ni), with carbon content up to about 0.25%, along with trace amounts of manganese, silicon, and nitrogen. This unique composition grants it exceptional resistance to oxidation and scaling at high temperatures, along with impressive creep strength. The mechanical properties of fasteners can vary based on their condition, but they typically exhibit tensile strength in the range of approximately 515–750 MPa, yield strength around 205–310 MPa, and elongation of about 30–40%. When specified correctly, 310 maintains its toughness at elevated temperatures and resists grain growth and embrittlement during thermal cycling.
| 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 |
| Element | SS 310 |
| Tensile Strength (MPa) min | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 |
| Elongation (% in 50mm) min | 40 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 217 |
Contact us to get a quick quote for your requirement.
A corrosion-resistant product, Stainless Steel 310 nuts are available in sizes from M6 to M64. They are designed for high-temperature applications, providing excellent resistance to oxidation and durability in extreme heat environments.
A corrosion-resistant product, Stainless Steel 310 coupling nuts, available in sizes from M6 to M36, connect two male threads securely. Their high-temperature resistance makes them ideal for use in furnace and heat exchanger applications.
A corrosion-resistant product, Stainless Steel 310 nylon insert nuts, or lock nuts, come in sizes from M3 to M36. The nylon insert prevents loosening under vibration, and the stainless steel provides heat and oxidation resistance for high-temperature environments.
A corrosion-resistant product, Stainless Steel 310 flange hex nuts feature an integrated flange and are available in sizes from M5 to M20. They offer superior load distribution and stability in high-temperature applications, such as in industrial furnaces.
A corrosion-resistant product, Stainless Steel 310 heavy hex nuts are available in sizes from M10 to M48. Their increased thickness provides superior strength and durability, ideal for heavy-duty applications in extreme heat conditions.
A corrosion-resistant product, Stainless Steel 310 square nuts come in sizes from M6 to M30. Their larger contact surface ensures secure fastening, making them suitable for high-temperature applications in industrial and aerospace settings.
We offer complete certification with our Stainless Steel 310 Nuts. We ensure that our products meet the highest quality standards. In the commercial package, our items consist of commercial invoices, packaging lists, fumigation certificates, heat treatment charts, quality assurance plans, and approved laboratory test reports. Further, for Stainless Steel 310 Nuts, we have varying test certificates as under, namely, MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. We intend to ensure 100% client satisfaction and confidence in our products by providing these detailed certifications.
SS 310 nuts are ideal for bolted joints that face prolonged exposure to high temperatures, oxidation, and thermal cycling. Common applications include furnace and kiln assemblies, connections for boilers and superheaters, burner and flue hardware, heat-treatment equipment, petrochemical heater supports, and high-temperature process lines. They are particularly valuable in situations where oxidation resistance is more critical than resistance to chloride corrosion. For assemblies that experience both high temperatures and oxidative conditions, SS 310 nuts are the go-to choice for ensuring reliability and performance.
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