Stainless Steel Grade A2-70 Fasteners are hardware components made from a specific grade of stainless steel known as A2-70, also referred to as AISI 304 or 18/8 stainless steel. This grade is one of the most commonly used stainless steels and contains approximately 18% chromium and 8% nickel, along with a small amount of carbon and other alloying elements. The chemical composition of Stainless Steel Grade A2-70 typically includes 17.5-20% chromium, 8-10.5% nickel, 1% max manganese, 1% max silicon, 0.07% max carbon, and small amounts of other elements like sulfur, phosphorus, and nitrogen.

One of the key features of Stainless Steel Grade A2-70 Fasteners is their excellent corrosion resistance. The high chromium content in the alloy forms a passive oxide layer on the surface, which protects the fasteners from corrosion in various environments. Stainless Steel Grade A2-70 Fasteners are particularly resistant to atmospheric corrosion, making them suitable for outdoor applications and general-purpose use.

Another notable feature of Stainless Steel Grade A2-70 Fasteners is their moderate strength and good mechanical properties. They offer adequate tensile strength and toughness, making them suitable for fastening applications that require reliable and durable connections.

A2 70 Hex Head Bolt, A2-70 Allen Bolt, Grade A2-70 Bolts, ISO 3506-1 Grade A2-70 Bolts, SS A2-70 Bolt, Stainless Steel Hex Bolt A2-70, SS A2-70 Fasteners Manufacturers In India.

Stainless Steel A2-70 Fasteners
  • ISO


  • DIN

    931, 934, 970


    ASTM A193 / ASME SA 193


Due to their excellent corrosion resistance and moderate strength, Stainless Steel Grade A2-70 Fasteners are commonly used in a wide range of applications. They are widely used in construction projects, infrastructure development, and general engineering applications. These fasteners are utilized in outdoor installations, such as in building facades, roofing, and structural components, where their resistance to atmospheric corrosion is crucial for long-lasting performance.

Additionally, Stainless Steel Grade A2-70 Fasteners find applications in the manufacturing of machinery, equipment, and appliances. They are commonly used in automotive components, electronics, and household appliances due to their corrosion resistance and aesthetic appearance.

A2-70 Stainless Steel Hex Head Bolt, A2 70 Hex Bolt, A2-70 Bolt Grade, A2-70 Stainless Steel Bolt, Stainless Steel Bolt Grade A2-70, SS Grade A2-70 Bolt, SS A2-70 Fasteners Manufacturers In India.

fevicon-logo A2-70 Bolts and Nuts Specification

SpecificationsASTM A193 / ASME SA 193
StandardDIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards
Size M3 to M90
Length 10mm to 1000mm
DimensionsDIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads availableUNF, BSW, BSF, METRIC, UNC, or as required
Threads ConfigurationASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
FormHex, Threading, Square, Round as per Gauge Etc.
HeadHex, Square, Round, Hex flange, Flat, T-head & Triangular etc.
Neck typeHex, Square, Triangular, Oval & Knurled etc.
Surface CoatingBlack Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing ProcessWire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Stainless steel A2-70 FASTENERS fasteners are widely used in many applications that require high durability, strength, and corrosion resistance. These materials offer a range of advantages that make them ideal for various industries, including construction, food processing, and chemical processing.

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fevicon-logo Chemical Composition of Stainless Steel A2-70 Fasteners

Grade C Mn P S Si Cr Ni Cu
A2-70 Min - - - - - 15.0 - -
Max 0.1 2.0 0.05 0.03 1.0 20.0 19.0 4.0

fevicon-logo Mechanical Properties of SS A2-70 Fasteners

Grade Yield Strength 0.2% Proof (MPa) min Elong (% in 4D min) Red of Area (% min)
A2-70 700 450 40

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fevicon-logo Types of Stainless Steel A2-70 Fasteners


SS 3 Nuts


SS A2-70 Bolt


SS A2-70 Washer

Stud Bolts

SS A2-70 Stud Bolts

Hex Bolt

A2-70 SS Hex Bolt

Threaded Rod

A2-70 SS Threaded Rod

Anchor Bolt

SS A2-70 PH Anchor Bolt

Spring Washer

SS A2-70 Spring Washer

Fasteners Manufacturers In India

  • Hardness testing to ISO 6508-1

  • Nut proof load testing to ISO 898-2

  • Suitability for preloading to EN 14399-2

  • Calibrated gauges and tools

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fevicon-logo Stainless Steel A2-70 Fastener Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
Nut Bolt