With its headquarters located in Delhi, India, Harshita Stainless is a reputable manufacturer and supplier of stainless steel 409 nuts, providing long-lasting and reasonably priced fastening solutions for a range of industrial and automotive applications. For applications requiring moderate corrosion resistance and high temperature performance, SS 409 nuts are the best choice due to their excellent mechanical strength, oxidation stability, and corrosion resistance. Precision engineering, reliable quality, and adherence to international standards are guaranteed by Harshita Stainless. The business provides services to customers in the general engineering, exhaust system, construction, and automotive industries in India and abroad thanks to its robust distribution network and customer-focused philosophy.
Chromium (10.5–11.75%) and iron (balance) make up the majority of stainless steel 409 nuts, with trace amounts of nickel, carbon (≤0.08%), and manganese. This ferritic stainless steel offers moderate corrosion resistance, especially in exhaust gas and mild atmospheric environments. In terms of mechanical properties, SS 409 nuts have a tensile strength of about 380–450 MPa, a yield strength of about 170–200 MPa, and an elongation of at least 20%. They are appropriate for heat-resistant applications since they maintain their structural integrity at high temperatures. Their machinability and weldability are good, providing practical advantages in manufacturing and assembly operations.
| 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.
Because of their exceptional heat resistance and moderate corrosion resistance, stainless steel 409 nuts are frequently found in automotive exhaust systems. They are a popular option for exhaust manifolds, catalytic converters, and mufflers. They are utilised in structural assemblies during construction when corrosion resistance at a reasonable cost is required. Additionally, the nuts are used in appliances that run in hot or mildly corrosive conditions, heat exchangers, and agricultural equipment. They are perfect for fasteners in general engineering applications because they are simple to fabricate and perform well under thermal cycling. For fastening in a variety of industrial sectors, SS 409 nuts provide a strong and affordable option.
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