Njabulo Stainless, based in Cape Town, South Africa, is a trusted manufacturer and supplier of Stainless Steel 420 Bolts. These high-quality bolts are designed for durable and reliable fastening in industrial, structural, and mechanical applications. Njabulo Stainless ensures precision threading, smooth surfaces, and consistent dimensions, providing secure and long-lasting connections. Stainless Steel 420 bolts are widely used in chemical, petrochemical, marine, automotive, and heavy machinery industries, where hardness, wear resistance, and moderate corrosion resistance are essential. They deliver reliable performance in high-stress and high-temperature operating environments.
Stainless Steel 420 Bolts are made from martensitic stainless steel 420, containing high carbon (0.15–0.40%) and chromium (12–14%). This composition provides good hardness, tensile strength, wear resistance, and moderate corrosion resistance. Mechanically, 420 bolts offer high fatigue strength, toughness, and dimensional stability, making them suitable for high-load, high-stress, and precision applications. Precision manufacturing ensures smooth threads and accurate dimensions, allowing secure fastening. These properties make 420 bolts ideal for industrial, structural, and mechanical applications requiring strength, durability, and long-lasting performance.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 420 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 420 |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 420 |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
Contact us to get a quick quote for your requirement.
Stainless Steel 420 bolts are high-hardness, martensitic fasteners with moderate corrosion resistance. They are ideal for applications requiring strength and wear resistance, including machinery, automotive, and cutting tools.
Custom Stainless Steel 420 hex bolt is a custom designed fastener with a square head, and provides superior strength and rigidity. Ideal for special applications requiring damage resistance and durability.
Stainless Steel 420 leg bolt is a high-hardness fastener with a threaded shaft and flat, leg-like design. It provides strength, durability, and wear resistance for demanding industrial and mechanical applications.
Stainless Steel 420 expansion anchor bolt secures fixtures in concrete or masonry with high hardness and strength. It provides durability and wear resistance, making it suitable for high-stress and industrial applications.
Stainless Steel 420 hex flange head bolt features a hexagonal head with an integrated flange, ensuring secure fastening and load distribution. It offers high hardness and durability for demanding applications.
Stainless Steel 420 full threaded bolts have a completely threaded shaft, offering consistent grip and engagement. They provide high strength and durability, suitable for demanding applications in industrial and mechanical settings.
After the manufacturing process comprehensive destructive and non-destructive testing is done under the supervision of our highly trained quality control team using state-of-the-art tools and techniques to ascertain the excellent performance and reliability features of our Stainless Steel 420 Bolts. Each bolt meets all industry standards and customer specifications through an inspection process that entails several evaluation stages. The bolts are securely packaged with high-quality materials to protect them from damage during shipping once they have been verified. Delivery is done promptly and without challenges to our distinguished customers, thanks to our efficient logistics. At the same time, we supply any document of need to clients upon delivery to ensure everything is clear and trusted.
Stainless Steel 420 Bolts are widely used in chemical plants, petrochemical industries, marine environments, automotive components, and industrial machinery. They are ideal for fastening pipelines, valves, pumps, pressure vessels, and structural components exposed to stress, wear, or moderate corrosion. Their hardness and wear resistance make them suitable for machinery parts, shafts, and industrial equipment. In construction and manufacturing, 420 bolts provide secure, durable, and precise fastening. Overall, Stainless Steel 420 bolts deliver strength, durability, and corrosion resistance, making them suitable for demanding industrial, mechanical, and structural applications.
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