Nakamura Stainless is a reputable manufacturer and supplier based in Pulau Ujong, Singapore, known for delivering top-notch stainless steel products that are built to last, resist corrosion, and perform reliably. One of their standout offerings is the Stainless Steel 409 Nuts, which are highly regarded for their impressive oxidation resistance, decent corrosion resistance, and solid mechanical strength. This particular grade of ferritic stainless steel is trusted for its dependable performance across automotive, industrial, and HVAC applications. With a commitment to international standards, Nakamura Stainless guarantees that their Stainless Steel 409 Nuts provide secure, durable, and efficient fastening solutions suitable for a variety of industrial and engineering needs.
These Stainless Steel 409 Nuts are made from ferritic stainless steel that contains 10–11.5% chromium, along with low carbon content (maximum of 0.08%) and trace amounts of titanium to boost corrosion resistance and prevent sensitization. This unique composition results in good tensile strength, toughness, and resistance to oxidation even at higher temperatures. The ferritic structure contributes to their durability, dimensional stability, and reliable performance during thermal cycling and in moderately corrosive environments.
| Material | Specification | Standards | Size | Length |
| Stainless Steel 409 Nut | ASTM, ASME and API | ASTM B 193 / ASME SB 193 | M02 to M30 | 3 mm To 200 mm |
| Element | Content |
|---|---|
| Carbon | 0.08 maximum |
| Manganese | 1.00 maximum |
| Phosphorus, maximum | 0.045 maximum |
| Sulfur, maximum | 0.045 maximum |
| Silicon | 1.00 maximum |
| Nickel | 0.5 |
| Chromium | 11.75 |
| Molybdenum | – |
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 450 |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 240 |
| Elongation in 4D (El) | 25% min |
| Reduction | – |
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Stainless steel 409 nuts are ideal for high temperature applications. Available in sizes from M6 to M36, they are commonly used in automotive exhaust systems, heat exchanger systems and furnace components to provide durability and moderate corrosion resistance.
The stainless steel 409 coupling nuts are designed to connect the threaded rods in a high temperature environment. Sizes range from M6 to M36, making them perfect for use in automotive and industrial systems that require a combination of durable and durable components.
Featuring a nylon insert for a secure fastening, stainless steel 409 nylon insert nuts are available in sizes from M6 to M24. They offer high strength and moderate corrosion resistance, suitable for automotive and industrial applications.
Stainless steel 409 flange hex nuts for enhanced weight distribution with integrated flange. Available in sizes from M6 to M24, they are ideal for heavy duty vehicles and industrial applications that require durability.
Heavy duty stainless steel 409 heavy hex nuts are designed for high stress environments. Available in sizes from M6 to M36, these nuts are used in industrial machinery and automotive systems requiring high strength and moderate corrosion resistance.
Stainless steel 409 square nuts provide large surface area for efficient torque application. Sizes range from M6 to M24, making them suitable for secure bonding in industrial environments with corrosive softness.
We take great care in packing and shipping our Stainless Steel 409 Nuts securely. Usually, a wooden box with strips is used to secure the nuts, which are packaged in waterproof material. For easy transport, they also feature a lifting point. The documents must be a commercial invoice, certificate of origin, fumigation certificate, heat treatment chart, quality assurance plan, and material testing certificates. In fact, our goal is to get these products into our customers in perfect condition and on time, which guarantees full satisfaction on their part.
You’ll find Stainless Steel 409 Nuts widely utilized in industries that demand strong, corrosion-resistant, and heat-tolerant fastening solutions. They’re commonly found in automotive exhaust systems, mufflers, catalytic converters, industrial machinery, and HVAC systems. Plus, they’re also used in ducting, furnaces, and other applications that face moderate corrosion and elevated temperatures. Thanks to their blend of strength, durability, and oxidation resistance, Stainless Steel 409 Nuts deliver reliable and long-lasting performance in challenging industrial settings.
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