Mitchell Stainless is a reliable manufacturer and supplier of Stainless Steel 420 Nuts based in Hamilton, New Zealand. We specialize in delivering precision-engineered fastening solutions tailored for tough industrial settings. With a strong commitment to quality, durability, and adherence to international standards, our SS 420 nuts are designed to provide outstanding strength, hardness, and wear resistance. Supported by state-of-the-art manufacturing facilities and rigorous quality control measures, we serve a variety of industries, including engineering, automotive, construction, and machinery manufacturing. At Mitchell Stainless, we strive to offer dependable products, consistent performance, and timely delivery to meet both standard and custom project needs.
Stainless Steel 420 is a martensitic stainless steel that contains around 12–14% chromium along with a higher carbon content, which gives it exceptional hardness and strength after heat treatment. Our SS 420 nuts showcase impressive tensile strength, moderate corrosion resistance, and excellent wear resistance when compared to austenitic grades. Once hardened and tempered, these nuts deliver a high load-bearing capacity and enhanced fatigue resistance. Their mechanical properties make them ideal for applications that demand rigidity, dimensional stability, and resistance to wear under mechanical stress.
| 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 Mitchell 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.
The Stainless Steel 420 nuts produced by Mitchell Stainless are extensively utilized in scenarios where high strength and wear resistance are crucial. You’ll find them in automotive assemblies, industrial machinery, pumps, valves, and mechanical equipment that face friction and stress. They’re also perfect for tooling, shafts, and fastening systems across engineering and manufacturing sectors.
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