Lecong Stainless, a top-notch manufacturer and supplier based in Da Nang, Vietnam, proudly presents its high-quality Stainless Steel 420 Nuts, designed for exceptional strength, precision, and longevity. Made from martensitic stainless steel grade 420, these nuts are known for their impressive hardness, wear resistance, and moderate corrosion resistance. Our SS 420 Nuts feature precise threading, accurate dimensions, and a polished finish, making them a reliable choice for fastening in demanding environments. They find extensive use in construction, automotive, aerospace, marine, and engineering sectors, where durability, toughness, and resistance to mechanical stress are crucial for safe and efficient operations.
Stainless Steel 420 Nuts consist of 12–14% chromium, with a minimum of 0.15% carbon, along with trace amounts of manganese, silicon, phosphorus, and sulfur. This specific alloy composition ensures high hardness and wear resistance, particularly after heat treatment. In terms of mechanical properties, SS 420 Nuts offer tensile strength ranging from 650–850 MPa, yield strength around 400 MPa, and reliable elongation, providing both toughness and dependability. Their capacity to maintain mechanical integrity under stress, coupled with moderate corrosion resistance, makes them ideal for fastening components that face high loads, vibrations, and tough industrial conditions.
| 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 Lecong 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 are incredibly versatile and find their way into a variety of applications that demand high strength, wear resistance, and durability. In the construction and infrastructure sectors, you’ll often see them used to fasten beams, frames, and structural joints. The automotive and aerospace industries depend on these nuts for engine assemblies, machinery, and heavy-duty equipment. When it comes to marine applications, SS 420 Nuts offer reliable fastening solutions that stand up to mild corrosion. They’re also commonly found in pump assemblies, valve systems, and tool manufacturing. Thanks to their impressive hardness and load-bearing capacity, SS 420 Nuts are perfect for tough environments where secure and long-lasting fastening is essential.
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