Stainless Steel 321 / 321H Fasteners Manufacturer in Mumbai, India
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Largest Stainless Steel 321 / 321H Fasteners Manufacturer & Supplier in Mumbai, India
Jai Hind Metal is a reliable manufacturer and supplier of Stainless Steel 321 / 321H Fasteners, providing corrosion-resistant and heat-resistant fastening solutions for industrial applications where dependable connections, dimensional accuracy, and long-term service performance are important. We understand that different projects may require specific fastener details such as diameter, length, thread type, thread pitch, head configuration, dimensional tolerances, surface finish, grade, and applicable manufacturing standards. Our Stainless Steel 321 / 321H Fasteners are supplied according to customer specifications, with careful attention to material quality, thread accuracy, dimensional consistency, surface condition, and overall workmanship throughout the manufacturing process. Quality checks are carried out at various stages of production to maintain product consistency, while finished fasteners can be inspected for dimensions, thread condition, head shape, surface appearance, markings, and general product quality before dispatch. Third-party inspection can also be arranged when required for project-specific verification or independent quality assessment. With organized inventory and suitable storage facilities, we can support both regular requirements and larger quantities for industrial, fabrication, maintenance, and project-based orders.
Proper handling and packaging form an important part of our supply process. Stainless Steel 321 / 321H Fasteners are carefully sorted, protected, and packed using suitable materials to help minimize scratches, moisture exposure, contamination, mixing of sizes, and handling damage during storage and transportation. Where required, we can arrange customized packaging, product identification, marking, labeling, batch identification, size-wise segregation, counting, bundling, and additional protective measures according to customer instructions or project specifications. Our dispatch team coordinates with established logistics providers to organize shipments efficiently and help ensure that orders are prepared and transported according to the agreed delivery schedule. By combining controlled manufacturing, systematic quality inspection, secure packaging, organized inventory management, accurate order preparation, and responsive customer coordination, Jai Hind Metal aims to provide a dependable supply experience to customers across chemical processing, oil and gas, petrochemical, power generation, heat-treatment equipment, pharmaceutical, food processing, aerospace, marine and offshore, industrial machinery, and other demanding engineering applications.
Precision Engineering
Precisely manufactured metal products meeting demanding industrial standards.
Quality Assured
Consistent quality, reliable performance, and strict inspection at every stage.
Custom Dimensions
Available in customized sizes, grades, thicknesses, and specifications.
Reliable Supply
Efficient processing, secure packaging, and dependable delivery worldwide.
Stainless Steel 321 / 321H Fasteners are manufactured from austenitic stainless steel containing chromium and nickel, with titanium added as a stabilizing element, along with controlled quantities of carbon, manganese, silicon, phosphorus, sulfur, nitrogen, and other alloying constituents. This balanced composition provides a useful combination of corrosion resistance, mechanical strength, toughness, thermal stability, and reliable performance in elevated-temperature service. Chromium helps the material develop a protective passive layer that resists general corrosion and oxidation, while nickel contributes to the stable austenitic structure and supports toughness and corrosion resistance. Titanium is added to stabilize the grade against chromium carbide precipitation during suitable high-temperature exposure, helping maintain corrosion resistance after heating within the applicable service range. The 321H variant contains a higher carbon level than standard 321 and is designed to provide improved high-temperature strength for suitable applications. Stainless Steel 321 / 321H Fasteners can be supplied in different diameters, lengths, thread configurations, head styles, dimensional tolerances, and surface finishes according to specific fastening and engineering requirements. With their combination of corrosion resistance, high-temperature stability, mechanical strength, toughness, oxidation resistance, and durability, Stainless Steel 321 / 321H Fasteners are widely used in chemical processing, aerospace, power generation, heat-treatment equipment, petrochemical plants, oil and gas, exhaust systems, thermal processing equipment, pharmaceutical facilities, and other demanding industrial applications.
Stainless Steel 321 Fasteners, 321H Stainless Steel Fasteners, SS 321H Industrial Fasteners, Stainless Steel 321H Bolts, 321 SS Nuts, 1.4541, 1.4878 Fasteners, UNS S32100 Fasteners, SS 321H Screws, Stainless Steel Fasteners,UNS S32109 Fasteners, X12CrNiTi18-9 Stainless Steel Fasteners, Stainless Steel 321H Stud Bolts, Stainless Steel 321 Fasteners Manufacturer in Mumbai, India.
In the annealed condition, Stainless Steel 321 / 321H Fasteners provide a reliable combination of corrosion resistance, mechanical strength, toughness, thermal stability, and resistance to oxidation, making them suitable for demanding fastening applications in industrial and engineering environments. They are particularly useful in assemblies exposed to elevated temperatures, hot gases, moisture, chemical process conditions, thermal cycling, and industrial atmospheres where consistent fastening performance is required. The chromium content helps protect the fastener surface against general corrosion and oxidation, while nickel supports the austenitic structure and contributes to toughness and corrosion resistance. Titanium stabilization in Grade 321 helps reduce the risk of chromium carbide precipitation during suitable high-temperature exposure, supporting corrosion resistance after thermal processing. The higher carbon content of 321H provides enhanced high-temperature strength for applications where elevated-temperature mechanical performance is important. These fasteners are commonly used in chemical processing equipment, aerospace systems, petrochemical plants, power generation facilities, heat-treatment equipment, exhaust and thermal systems, oil and gas installations, pharmaceutical equipment, and industrial machinery. Depending on their application and configuration, they can be supplied as bolts, nuts, screws, washers, studs, threaded rods, anchor fasteners, and other specialized fastening components. With their combination of corrosion resistance, high-temperature strength, thermal stability, oxidation resistance, toughness, and durability, Stainless Steel 321 / 321H Fasteners are well suited for assemblies where secure connections must perform reliably under elevated-temperature and demanding service conditions.
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Largest Stockholder of Stainless Steel 321 Fasteners in India, Ready Stock of X6CrNiTi18-10 Stainless Steel Washers, 321 Stainless Steel Studs Trader, SS 321H Screws, 321 SS Anchor Bolts, Competitive Price of Stainless Steel 321H Full Threaded Bolts, ASTM F593 321 Fasteners Manufacturers in Mumbai, India.
Composition of Stainless Steel 321 / 321H Fasteners
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Stainless Steel 321 / 321H Fasteners Specification
| 321 / 321H Fasteners Specifications | ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
|---|---|
| 321 / 321H SS Fasteners size | Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Machine Screws Size : M1.6 – M12 Self Tapping Screw Size : No.2 – No. 14 |
| SS 321 / 321H Fasteners Length | 3 mm to 200 mm |
| SS 321 / 321H Studs, Bolts, Threads | UNF, BSW, BSF, METRIC, UNC, or as required |
| Standard of Stainless Steel 321 / 321H Fasteners | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard SS 321 Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 SS 321 Hex nuts |
| Form of SS 321 / 321H Fasteners | Hex, Threading, Square, Round as per Gauge Etc. |
| Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Test Certificate of SS 321 / 321H Bolting | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Production process | M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC |
| Head drive of SS 321 / 321H Bolts | Six-Lobe,Phillips,Phillips/Slot, Slotted etc |
| Packing of SS 321 / 321H Fasteners | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
| Surface Coating | Ptfe Coated Stainless Steel 321 Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
| Stainless Steel 321 / 321H Fasteners finishing | Stainless steel : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Stainless Steel, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide, |
Stainless Steel 321 / 321H Fasteners can be supplied in either bolting construction and are covered by specification ASTM F593/ F594 and ASME B18.5.
| ASTM A193 | ASTM A194 | ASTM F2281 |
| ASTM A193M | ASTM A194M | ASTM A962 |
| ASTM A320 | ASTM F593-13a | ASTM A962M |
| ASTM A320M | ASTM F594-15 | |
| DIN 580 | DIN 6914 | DIN 6921 |
| DIN 582 | DIN 3570 | DIN 603 |
| DIN 444 | DIN 7990 | DIN 2510 |
| DIN 939 | DIN 1B | DIN 976 |
| DIN 933 | DIN 529 | DIN 912 |
| DIN 931 | DIN 6325 |
ASTM A193 / A194 Stainless Steel 321 / 321H Fasteners Forms & Availability
| Products | Size | |
| ASTM A193 / A194 321 / 321H SS Stud Bolt | ASTM A193 / A194 321 / 321H SS Bolts | Sizes M3 – M56 | 3/6″ to 2″ |
| ASTM A193 / A194 321 / 321H SS Punched Washer | ASTM A193 / A194 321 / 321H Stainless Steel Pan Head Screw | |
| ASTM A193 / A194 321 / 321H Stainless Square Nut | ASTM A193 / A194 321 / 321H SS Insert Nuts | |
| ASTM A193 / A194 321 / 321H SS Welding Studs | ASTM A193 / A194 321 / 321H SS Pan Head Screw | |
| ASTM A193 / A194 321 / 321H Stainless Cap Screw | ASTM A193 / A194 321 / 321H Stainless Foundation Bolts | |
| ASTM A193 / A194 321 / 321H SS Threaded Rod | ASTM A193 / A194 321 / 321H Stainless Hex Head Bolts | |
| ASTM A193 / A194 321 / 321H Stainless Nuts | ASTM A193 / A194 321 / 321H Stainless Washers | |
| ASTM A193 / A194 321 / 321H SS Fender Washer | ASTM A193 / A194 321 / 321H SS Lock Nut | |
| ASTM A193 / A194 321 / 321H SS Countersunk Slotted Screw | ASTM A193 / A194 321 / 321H SS Double Ended Stud | |
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Equivalent Grades Stainless Steel 321 / 321H Fasteners
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Chemical Composition of Stainless Steel 321 / 321H High Tensile Fasteners
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| 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 |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
Mechanical Properties of Stainless Steel A193 / A194 321 / 321H 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 % |
Stainless Steel 321 / 321H Fasteners can be supplied in either Pipe or Plate construction and are covered by specification ASTM A182 and ASME B16.5.
Stainless Steel 321 / 321H Fasteners are available in different sizes, lengths, thread profiles, head configurations, and fastening forms, depending on the assembly design, installation requirements, service conditions, and customer specifications. These fasteners are manufactured and supplied in accordance with recognized material and dimensional standards to maintain consistent alloy chemistry, mechanical properties, dimensional accuracy, thread quality, and surface condition. Depending on the product type and applicable grade requirements, Stainless Steel 321 / 321H Fasteners can be supplied according to relevant ASTM and ASME specifications, together with suitable dimensional and manufacturing requirements for the intended application. Available forms include hex bolts, nuts, screws, washers, studs, threaded rods, anchor fasteners, machine screws, and other specialized fastening components. Fasteners can be produced with different diameters, lengths, thread configurations, head styles, tolerances, and surface finishes to meet both standard fabrication requirements and customized engineering applications. Manufacturing and inspection procedures are carefully managed to maintain material traceability, accurate dimensions, consistent threading, proper surface condition, correct product identification, and overall quality. This helps support dependable fastening performance in assemblies exposed to elevated temperatures, thermal cycling, corrosive environments, and demanding industrial service conditions.
Stainless Steel 321 / 321H Fasteners Production Range
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We offer These Stainless Steel 321 / 321H Fasteners as per DIN, ISO, JIS or ANSI Standard.
We supply Stainless Steel 321 / 321H Fasteners in accordance with widely recognized ASTM, ASME, DIN, EN, JIS, and ISO standards, supporting the requirements of industrial fabrication, equipment manufacturing, maintenance work, and specialized engineering projects. Our fasteners are available in different diameters, lengths, thread configurations, head styles, dimensions, tolerances, and surface finishes to suit specific assembly requirements and customer specifications. At Jai Hind Metal, we maintain close control over material consistency, dimensional accuracy, thread quality, surface condition, product identification, traceability, and workmanship throughout the manufacturing and supply process. Stainless Steel 321 / 321H Fasteners can also be supplied against customer drawings, technical specifications, inspection plans, testing requirements, material test certificates, and project-specific standards. Where required, we can arrange additional inspection, documentation, marking, labeling, packaging, and third-party verification according to individual project requirements. For product details, technical specifications, availability, or customized requirements, email us at info@jaihindmetal.com.
Uses & Applications of Stainless Steel 321 / 321H Fasteners
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Email: info@jaihindmetal.com
INDUSTRIES WE SERVE
Our high-performance metal products are engineered to meet the demanding requirements of industries operating in challenging environments, including extreme temperatures, pressure and corrosive conditions.
Marine Applications
Our corrosion-resistant metal products are widely used in marine environments where exposure to seawater, salt spray and harsh atmospheric conditions demands exceptional durability and reliability.
Oil & Gas
Our nickel alloys and high-performance metal products are used throughout the oil and gas industry for demanding applications involving high pressure, corrosive fluids, sour gas and extreme operating conditions.
Chemical Processing
Our corrosion-resistant alloys provide dependable performance in chemical processing equipment exposed to aggressive chemicals, high temperatures and challenging process conditions.
Aerospace
High-strength nickel alloys and specialty metals are selected for aerospace applications where lightweight performance, strength and resistance to extreme temperatures are essential.
Power Generation
Our specialty metal products support power generation equipment operating under high temperatures, pressure and corrosive conditions, delivering reliable long-term performance.
Salt Production
Corrosion-resistant metals are ideal for salt production environments where continuous exposure to concentrated salt and moisture can severely affect conventional materials.
