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Neesham Flanges is a reputable manufacturer and supplier of top-notch Stainless Steel 420 Fasteners based in Hamilton, New Zealand. They offer durable and dependable fastening solutions suitable for a variety of industrial and mechanical applications. Renowned for their precision engineering, impressive hardness, and decent corrosion resistance, the company guarantees that every fastener adheres to international standards, ensuring reliable performance. The Stainless Steel 420 Fasteners from Neesham Flanges are crafted to endure mechanical stress, moderate chemical exposure, and high-load situations, making them perfect for sectors like automotive, industrial machinery, chemical processing, and general manufacturing, where robust and long-lasting fastening components are essential.
These fasteners are made from martensitic stainless steel, rich in carbon and chromium, which provides outstanding hardness, wear resistance, and moderate corrosion resistance. They deliver dependable tensile strength, dimensional stability, and durability under mechanical stress, making them ideal for bolts, nuts, screws, studs, and other assemblies that face vibration, pressure, and repetitive loads. The blend of toughness, mechanical strength, and corrosion resistance ensures that Stainless Steel 420 Fasteners maintain their structural integrity and long-term performance, even in challenging industrial settings.
| Specifications | ASTM A 193 / ASME SA 193 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Fasteners Length | 3 mm – 200 mm | Custom Sizes |
| Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Grade | C | Mn | Si | P | S | Cr |
| SS 420 | 0.15 max | 1.00 max | 1.00 max | 0.04 max | 0.03 max | 14.0 – 12.0 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
| 420 | 480 | 275 | 16 | 95 | 201 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 420 fasteners are used in applications where high strength and corrosion resistance are crucial. They are ideal for automotive components, including engine parts and exhaust systems, as well as in construction and machinery where durability is needed. Their ability to withstand elevated temperatures and resist wear makes them suitable for industrial settings that demand reliable performance. Additionally, these fasteners are used in tools and equipment exposed to moderate corrosive conditions, ensuring longevity and robust functionality.
You’ll find Stainless Steel 420 Fasteners commonly used in automotive parts, industrial machinery, pumps, valves, chemical processing equipment, and general fabrication assemblies. They excel at securing structural components, high-load joints, and mechanical systems where hardness, wear resistance, and mechanical reliability are crucial. With their durability, strength, and consistent performance, Stainless Steel 420 Fasteners are the go-to choice for safe, efficient, and long-lasting fastening solutions in demanding industrial and mechanical environments.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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