Vision Alloys is a leading SS 347 fastener manufacturer and a trusted stainless steel 347H nut bolt supplier in India. We provide a diverse selection of 347 stainless steel fasteners, such as nuts, bolts, washers, screws, and studs, all crafted for high-performance use. Our Stainless Steel 347H fasteners are recognized for their outstanding corrosion resistance, impressive high-temperature strength, and long-lasting durability. These fasteners meet international quality standards and are commonly used in the aerospace, power generation, and chemical processing industries.


Stable austenitic stainless steel alloys containing 17–20% chromium, 9–13% nickel, and columbium (niobium) make up the SS 347 and 347H fasteners. This helps them resist intergranular corrosion better. The 347H grade features a higher carbon content, which enhances its strength in high-temperature settings, reaching up to 1000°C. These 347 stainless steel bolts, nuts, and washers are perfect for resisting oxidation in tough industrial environments.


We manufacture 347 stainless steel nuts and bolts using premium raw materials, ensuring superior mechanical and corrosion-resistant properties. The alloy's ingredients—chromium, nickel, columbium, carbon, manganese, silicon, and phosphorus—make it very resistant to cracking, stress corrosion, crevice corrosion, and pitting. These fasteners are perfect for heat exchangers, furnace components, and refinery equipment.


Stainless Steel 347 Fasteners, UNS S34700 Bolts, SS 347 Hex Nuts, S34700 Stainless Steel Bolts, SS 347 Bolts, Alloy 347 Fasteners, Grade 347 Fasteners, 347 Stainless Steel Fasteners, UNS S34700 Stainless Steel bolts, Stainless Steel 347 Fasteners Manufacturers In India.


Stainless Steel 347 Fasteners
  • UNS

    S34700

  • WNR

    1.4550

  • ASTM / ASME

    ASTM A193 / ASME SA 193

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Our SS 347 fasteners meet the standards set by ASTM A193, ASTM A194, ASTM A320, ASME SA193, ASME SA194, as well as DIN specifications like DIN 933, DIN 931, and DIN 934. We offer grades 347 and 347H to meet different industrial needs.


We offer 347 stainless steel bolts, nuts, and screws in both standard and custom sizes, with schedules available from SCH 10 to SCH 80. Common sizes range from M6 to M42 or 1/4” to 1-1/2” in diameter, and you can also request custom lengths and widths to suit your specific application needs.


At Vision Alloys, we ensure secure packaging, using wooden boxes, plastic wraps, and bubble wraps to prevent transit damage. We provide fast domestic and international delivery, ensuring that urgent project demands are met promptly. As a top stainless steel 347 nuts and bolts supplier in Mumbai, India, and a leading SS 347 fastener exporter to the United States, we guarantee superior-quality 347/347H fasteners that meet strict industry standards. Contact us today for competitive SS 347 fastener prices and a reliable supply of SS 347 bolts, nuts, screws, and washers for your projects.


347H Stainless Steel Fasteners, Alloy 347H Fasteners, Grade 347H Fasteners, 347h SS Fasteners, SS 347H Bolts, SS 347H Nuts, SS 347H Studs, SS 347H Fasteners Manufacturers In India.


fevicon-logo SS 347 Bolts and Nuts Specification

Specifications ASTM A193 / ASME SA 193
Standard DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards
Size M3 to M90
Length 10mm to 1000mm
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.

Quality Assurance

To preserve the high standards of our selection of industrial fasteners, we have always adhered to a systematic quality management process.

Team OF Experts

Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of fasteners.

fevicon-logo Equivalent Grades Of Stainless Steel 321 Fasteners

STANDARD WERKSTOFF NR. UNS JIS GOST EN
SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10

fevicon-logo Chemical Composition of Stainless Steel 347 Fasteners

Grade C Mn Si P S Cr CB Ni Fe
SS 347 0.08 max 2.0 max 1.0 max 0.045 max. 0.030 max 17.00 - 20.00 10xC – 1.10 9.00 - 13.00 62.74 min

fevicon-logo Mechanical Properties of SS 347 Fasteners

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

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If would you like to inquire or place an order.
+91 22 6659 5948


fevicon-logo Types of Stainless Steel 347 Fasteners

Nut

SS 3 Nuts

Bolt

SS 347H Bolt

Washers

SS 347 Washer

Stud Bolts

SS 347 Stud Bolts

Hex Bolt

347 SS Hex Bolt

Threaded Rod

347 SS Threaded Rod

Anchor Bolt

SS 347 Anchor Bolt

Spring Washer

SS 347H 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 347 Fastener Application Industries

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