Nestled in the heart of Kinshasa, Sadiki Metals stands as a trusted partner for industrial and construction needs across Congo. We take pride in our role as a dedicated manufacturer and supplier of high-integrity components, with a special focus on precision-engineered Stainless Steel 321H Nuts. Our commitment is to deliver not just a product, but a promise of reliability and durability, ensuring your projects are built on a foundation of exceptional quality and local expertise you can count on.
The strength of these nuts comes from their specific makeup. The 321H grade is stabilized with titanium, which gives it outstanding resistance against corrosion, particularly in high-temperature environments where standard stainless steels might weaken. This composition ensures they maintain their impressive mechanical properties, including high tensile strength and excellent creep resistance, allowing them to perform reliably under sustained stress and heat, making them a robust choice for demanding applications.
| Specifications Of | 321H Stainless Steel Nuts |
|---|---|
| Length Sizes | 3 millimeter to 200 millimeter |
| Head Type | Hex, Square |
| Head Style | Hex, Square |
| Standard | ASME B18.2.2 ASME B16.5 ASME B18.5 ANSI B 18.2.4 2M DIN = DIN 931, DIN 933, DIN 934, DIN 970 ISO = ISO 4033, ISO 4032, JIS UTS = UNF, NPTF, NPT, UNC, UNEF, UNS |
| Surface Coating | Hot Dipped Galvanizing Coated Nuts Phosphate Coated Nuts Zinc Coated Nuts Cadmium Coated Nuts Teflon Coated Nuts Xylon Coated Nuts |
| Type Of Nuts | Coupling Nuts, Serrated Flange Locknuts, Square Nuts, Heavy Hex Nuts, Flange Nuts |
Grade | Mn | N | P | C | S | Cr | Mo | Si | Ni | Other | |
Stainless Steel 321H Nuts | minimum maximum | 2.00 | – | 0.045 | 0.04 0.10 | 0.030 | 17.0 19.0 | – | 0.75 | 9.0 12.0 | Ti=4(C+N) 0.70 |
Grade | Tensile Strength (MPa) minimum | Yield Strength 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Hardness | |
Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
321H Stainless Steel Fasteners | 515 | 205 | 40 | 95 | 217 |
Contact us to get a quick quote for your requirement.
Corrosion-resistant product ideal for high-temperature applications. Stainless Steel 321H Nuts are available in sizes from M6 to M36, designed for use in aerospace and chemical processing environments, offering excellent heat and oxidation resistance.
Stainless Steel 321H Coupling Nuts are used to connect threaded rods in high-temperature settings. Sizes range from M6 to M36, suitable for applications in chemical processing and aerospace where heat resistance and durability are essential.
Stainless Steel 321H Nylon Insert Nuts feature a nylon insert to prevent loosening under high temperatures. Available in sizes from M6 to M24, they are ideal for applications in industrial machinery and exhaust systems where stability and heat resistance are crucial.
Stainless Steel 321H Flange Hex Nuts provide enhanced load distribution with their integrated flanges. Sizes range from M6 to M24, making them suitable for high-temperature environments like chemical processing and aerospace, offering both strength and corrosion resistance.
Stainless Steel 321H Heavy Hex Nuts are designed for high-stress and high-temperature applications. Available in sizes from M6 to M36, they are used in industrial machinery and aerospace components, providing exceptional strength and heat resistance.
Stainless Steel 321H Square Nuts offer a large surface area for effective torque application. Sizes range from M6 to M24, suitable for high-temperature and industrial applications, ensuring durability and stability in demanding environments.
We ensure complete documentation for our Stainless Steel 321H Nuts, which means transparency and reliability. Our documents include a commercial invoice, a packaging list, a fumigation certificate, a heat treatment chart, and a quality assurance plan. The package also includes an NABL-approved lab test report, confirming strict standards. Further, quality is demonstrated through many test certificates in the form of MTC according to EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and a third-party inspection certificate. These guarantee 100% client satisfaction along with confidence for the integrity of our products.
Because of their unique ability to withstand intense heat and corrosive atmospheres, these nuts are indispensable in several critical industries. You’ll find them securely fastening components in power generation plants, chemical processing equipment, and refinery piping systems. They are also the preferred choice for constructing industrial furnaces, aircraft exhaust systems, and any application where both superior strength and long-term stability at elevated temperatures are absolutely essential for safety and performance.







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