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Punit Fasteners, located in Delhi, India, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel fasteners, including their Stainless Steel 310/310S nuts. Known for their commitment to quality, Punit Fasteners delivers products designed to endure extreme temperatures and resist corrosive environments, making them a go-to choice for critical industries that need precision-engineered solutions. Their 310/310S stainless steel nuts are celebrated for their outstanding oxidation resistance, durability, and mechanical strength. With cutting-edge manufacturing processes and rigorous quality controls, the company serves various sectors such as petrochemicals, furnaces, power plants, and heat treatment facilities, ensuring that their products perform reliably for both local and international clients.
Stainless Steel 310/310S is an austenitic alloy that contains 24–26% chromium and 19–22% nickel. The 310S grade features a lower carbon content compared to 310, which enhances its weldability and reduces the risk of carbide precipitation. These nuts are known for their impressive high-temperature strength, boasting a tensile strength of around 515 MPa and a yield strength of approximately 205 MPa. They also maintain good ductility and toughness, with an elongation of nearly 40% and a hardness of about 95 HRB. This unique blend of properties makes them perfect for applications that face heat, oxidation, and mild corrosive 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 find their place in high-temperature and oxidizing environments. You’ll often see them in heat exchangers, furnace components, boilers, incinerators, and thermal processing equipment. These nuts are crucial in industries like petrochemical, metallurgy, cement, power generation, and aerospace, where heat and corrosion resistance are paramount. They’re also well-suited for flue gas systems and exhaust assemblies. Their remarkable strength retention at elevated temperatures, along with their resistance to scaling and thermal fatigue, makes them ideal for securely fastening components that operate under extreme conditions.
Sheetal 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.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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