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At Mira Fasteners, we are the leading manufacturer and supplier of Stainless Steel 321/321H nuts in Kuala lumpur, Malaysia. Our fruit is specially designed for high humidity environments, giving it exceptional resistance to rust and oxidation. Ideal for the aerospace, automotive, and medical industries, our stainless steel 321/321H nuts meet stringent quality standards to ensure reliability and durability. Trust us in perfectly designed nuts that provide consistent, long-lasting performance in tough industrial applications.
Mira Fasteners is your go-to manufacturer and supplier of Stainless Steel 321 / 321H Nuts, proudly based in Kuala Lumpur, Malaysia. These nuts are specially designed to thrive in high-temperature and corrosive settings, providing outstanding stability, weldability, and resistance to intergranular corrosion. At Mira Fasteners, we produce 321 and 321H nuts that adhere to international standards, ensuring reliable fastening solutions for applications in heat exchangers, chemical processing, and aerospace components where thermal performance and structural integrity are paramount.
| Specifications | IS, BS, ASTM |
| Standard | ASTM / ASME – A/ SA 193 |
| Length | 3 mm to 200 mm |
| Size | M02 to M33 |
| Type | Hex Nuts, Dome Nuts, Hex Machine Screw Nuts, Hex Lock Nuts Nylon Insert, Hex Jam Nuts, Hex Jam Nylon Lock Nuts, Heavy Hex Nuts, Wing Nuts, Cap Nuts, Acorn Nuts, Square Nuts, K-Lock Nuts, Prevailing Torque Lock Nuts, Top Lock Nuts, Two-Way Reversible Lock Nuts, Pin-Lock Nuts, T-Nuts, Coupling Nuts, T-Slot Nuts, Castle Nuts, Flange Nuts Serrated, Machine Hex Nuts, Finished Hex Nuts, Forged Eye Nut, Rivet Nuts, Slotted Hex Nut, Acme Hex Nuts, Nylock Nuts, Anco Locknuts, Flexloc Nuts, Reversible Locknuts, Panel Nut, Poly Nut, Conelock Nut, Self Clinching Nuts, Domed Cap Nuts, Imperial Thread Nuts, Imperial Thread Nylock Nuts, Sleeve Nuts, Thin Nuts, Weld Nuts, High Tensile Nuts, Cage Nuts, Security Nuts, Imperial Nuts, Industrial Nuts, Miscellaneous Nuts, Insert Nuts, Knurled Nuts, Round Nuts |
| Element | SS 321 |
| Ni | 9.0 – 12.0 |
| C | 0.08 |
| Mn | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| Si | 0.75 max |
| Cr | 17.0 – 19.0 |
| Mo | – |
| N | 0.10 |
| Element | SS 321 |
| 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 |
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.
Crafted from titanium-stabilized austenitic stainless steel, our Stainless Steel 321 / 321H Nuts are built to last. Grade 321 features titanium to prevent carbide precipitation during welding, which boosts its resistance to intergranular corrosion. On the other hand, Grade 321H is a high-carbon variant that offers enhanced creep resistance and strength at elevated temperatures. Both grades contain around 17–19% chromium and 9–12% nickel, maintaining excellent oxidation resistance up to 870°C (1600°F). These nuts are celebrated for their toughness, high-temperature strength, and dependable performance even under thermal cycling.
You’ll find Stainless Steel 321 / 321H Nuts in a variety of high-temperature applications, including boilers, exhaust systems, furnace components, and petrochemical processing units. Their exceptional weldability and thermal stability make them perfect for welded structures and environments that experience frequent temperature changes. These nuts ensure secure fastening under both mechanical and thermal stress, making them a robust and efficient choice for industries that demand long-lasting performance in harsh, high-heat conditions.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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