Njabulo Stainless is a reliable manufacturer and supplier of Stainless Steel 420 Nuts, proudly based in Cape Town, South Africa. The company focuses on crafting top-notch stainless steel fasteners that boast impressive hardness, wear resistance, and decent corrosion resistance. Their Stainless Steel 420 Nuts are designed for applications that demand durable and trustworthy fastening, especially in high-stress and wear-intensive environments. With state-of-the-art manufacturing facilities and rigorous quality control measures, Njabulo Stainless ensures that their precision-engineered nuts meet international standards, providing secure and long-lasting fastening solutions for a variety of industrial, mechanical, and structural needs.
These Stainless Steel 420 Nuts are primarily made up of iron, chromium (12–14%), carbon (0.15–0.40%), along with trace amounts of manganese, silicon, and molybdenum. This high-carbon martensitic stainless steel grade delivers outstanding hardness, tensile strength, and wear resistance after undergoing heat treatment. The nuts typically exhibit a tensile strength ranging from about 600 to 900 MPa, a yield strength of around 350 to 600 MPa, and good toughness, making them perfect for heavy-duty and precision applications. They also provide moderate corrosion resistance, ensuring dependable performance in mildly corrosive settings.
| Specifications | : | ASTM A /SA 193 / 194 |
| Dimensions | : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Nuts size | : | M02 to M33 |
| Fe | C | Mn | Si | Cr | Ni* | Mo* | P | S | Cu* | Al* | Sn* |
|---|---|---|---|---|---|---|---|---|---|---|---|
Balance | 0.15-0.40% | 1.00% max | 1.00% max | 12.00-14% | 0.50% max | 0.50% max | 0.04% max | 0.03% max | 0.50% max | 0.15% max | 0.05% max |
| Property | Metric |
|---|---|
Density | 7.74 g/cm3 |
Elastic Modulus | 200 GPa |
Electrical Resistivity | 0.55 x 10-7 .m |
Tensile Strength | 655 MPa |
Yield strength (Temper: Annealed) Minimum 0.2% offset | 40,000 psi |
Yield Strength (Temper: Hardened + 350°F) Typical 2% offset | 195,000 psi |
Elongation (% in 50 mm) | 25 |
Brinell Hardness (HB) | 241 max |
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Corrosion-resistant product known for high hardness. Stainless Steel 420 Nuts are available in sizes from M6 to M36, suitable for applications where wear resistance and durability are crucial, such as in cutting tools and industrial machinery.
Stainless Steel 420 Coupling Nuts are designed for joining threaded rods, available in sizes from M6 to M36. They are used in applications requiring high hardness and resistance to wear, such as in machinery and automotive components.
Featuring a nylon insert for secure fastening, Stainless Steel 420 Nylon Insert Nuts come in sizes from M6 to M24. They offer stability and prevent loosening, ideal for applications where vibration resistance and durability are important.
Stainless Steel 420 Flange Hex Nuts provide enhanced load distribution with integrated flanges. Available in sizes from M6 to M24, they are used in heavy-duty machinery and structural applications where high hardness and support are needed.
Designed for high-stress applications, Stainless Steel 420 Heavy Hex Nuts are available in sizes from M6 to M36. They offer superior hardness and strength, making them suitable for use in industrial machinery and demanding environments.
Stainless Steel 420 Square Nuts offer a large surface area for effective torque application. Available in sizes from M6 to M24, they are ideal for secure fastening in tight spaces within various industrial and structural applications.
At Njabulo Stainless, we take great care in packaging our Stainless Steel 420 Nuts to ensure that they reach you in the best possible condition. Each set of nuts is securely wrapped in plastic and placed in sturdy wooden boxes, clearly labeled for easy identification and efficient delivery. We provide both domestic and international shipping options, using reliable courier services or air freight, depending on your location. All shipments come with full insurance, packing lists, commercial invoice, and all the information possible on the packages. Our utmost priority is your order arriving just as perfect, right on schedule, with extra packaging if possible and express service depending on need.
Stainless Steel 420 Nuts find their place in various industries that require strength, wear resistance, and reliable fastening. They are particularly suited for industrial machinery, automotive components, bearings, gears, shafts, and structural assemblies that face moderate corrosive conditions. Additionally, these nuts are utilized in tools, hardware, and mechanical equipment where high hardness and reliability are essential. Their blend of mechanical strength, wear resistance, and moderate corrosion protection makes 420 nuts a go-to choice for demanding industrial and mechanical applications.
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