Vision Alloys is a trusted SS 321 fastener manufacturer and a leading stainless steel 321H nut bolt supplier in India. We offer a wide variety of 321 stainless steel fasteners, such as nuts, bolts, washers, screws, and studs, all made for high-strength and high-temperature uses. Our Stainless Steel 321H fasteners are well known for their exceptional tensile strength, endurance, and resistance to corrosion. These fasteners are made to meet international quality standards, making them perfect for industries like aerospace, chemical processing, and heat exchangers.


Stabilized austenitic stainless steel alloys, such as SS 321 and 321H fasteners, are made up of 17–19% chromium, 9–12% nickel, and titanium. This makes them more resistant to intergranular corrosion. The 321H grade contains more carbon, which boosts its strength in high-temperature settings. 321 stainless steel bolts, nuts, and washers are excellent for oxidation-resistant applications, especially at temperatures reaching up to 900°C.


We produce 321 stainless steel nuts and bolts using top-notch raw materials, guaranteeing dependability even in tough conditions. The mix of metals like chromium, nickel, titanium, carbon, manganese, silicon, and phosphorus gives it useful resistance to crevice corrosion, stress corrosion cracking, and pitting. These fasteners work suitably for heat-resistant applications in fields like petrochemical, oil and gas, and power generation.


321 Stainless Steel Bolts, Stainless Steel 321 Nuts and Bolts, SS 321 Hex Bolt, ASTM A193 Stainless Steel 321 Stud Bolt, SS 321 Threaded Rod, 321 Stainless Steel Fasteners, SS 321 Fasteners Manufacturers In India.


Stainless Steel 321 Fasteners
  • UNS

    S32100

  • WNR

    1.4541

  • ASTM / ASME

    ASTM A193 / ASME SA 193

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Our SS 321 fasteners meet the requirements of ASTM A193, ASTM A194, ASTM A320, ASME SA193, ASME SA194, and various DIN standards, including DIN 933, DIN 931, and DIN 934. We provide 321, 321H, and tailored grades to suit specific industry requirements.


We provide 321 stainless steel bolts, nuts, and screws in both standard and custom sizes. Our products come in various schedules from SCH 10 to SCH 80, with dimensions ranging from M6 to M42 or 1/4” to 1-1/2” in diameter. We give custom lengths and widths to guarantee a perfect fit for your industrial needs.


At Vision Alloys, we focus on secure packaging, using wooden boxes, plastic wraps, and bubble wraps to prevent damage during transit. With fast domestic and international delivery, we meet time-sensitive project demands efficiently. As a top stainless steel 321 nuts and bolts supplier in Mumbai, India, and a reliable SS 321 fastener exporter to the United States, we guarantee high-quality 321/321H fasteners that adhere to strict industry standards. Contact us today for competitive stainless steel 321 fastener prices and a dependable supply of SS 321 bolts, nuts, screws, and washers for your projects.


SS 321 Bolts, Stainless Steel 321 Bolts, Stainless Steel 321 Nuts, 321 SS Stud Bolt, SS 321H Washers, Stainless Steel 321H Fasteners, SS 321H Bolts, SS 321H Fasteners Manufacturers in India.


fevicon-logo SS 321 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 EN
SS 321 1.4541 S32100 SUS 321 X6CrNiTi18-10

fevicon-logo Chemical Composition of Stainless Steel 321 Fasteners

Grade C Mn Si P S Cr N Ni T
SS 321 0.08 max 2.0 max 1.0 max 0.045 max. 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max

fevicon-logo Mechanical Properties of SS 321 Fasteners

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1457 °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 321 Fasteners

Nut

SS 3 Nuts

Bolt

SS 321H Bolt

Washers

SS 321 Washer

Stud Bolts

SS 321 Stud Bolts

Hex Bolt

321 SS Hex Bolt

Threaded Rod

321 SS Threaded Rod

Anchor Bolt

SS 321 Anchor Bolt

Spring Washer

SS 321H 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 321 Fastener Application Industries

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