Office Address
- G/81, Ground Floor, C Sarvodaya Nagar, Panjrapole 1st Lane Madhav Baug, Mumbai 400004
- sales@nirvaanoverseas.com
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Technical Product Details
| Material Grade | Austenitic Stainless Steel 304 (UNS S30400 Nuts / SS 304L / SS 304H) |
| Governing Specifications | ASTM A193 B8 SS 304 Bolts, ASTM A194 Grade 8 SS 304 Nuts, ASME B18.2.1, ASME B18.2.2, DIN 931 / 933 / 934 |
| Supply Configurations | Cold Forged Hex Head Bolts, Hot Forged Heavy Hex Bolts, CNC Machined Threaded Studs, Heavy Hex Mating Nuts |
| Dimensional Scope | Size Range: M3 to M100 (1/8" to 4") | Length: Up to 1500 mm / Custom Cut Thread Rods |
| In-House Quality Verification | PMI Chemical Analysis, Vernier Caliper & Micrometer Dimensional Checks, Ultrasonic Testing (UT) per ASTM A388, EN 10204 3.1 Certification |
Table of Contents
Nirvaan Overseas is a trusted SS 304 Nuts & Bolts Manufacturer in India, forging high-tensile 18/8 austenitic stainless steel threaded components. Formulated with 18% chromium and 8% nickel, ASTM A193 B8 SS 304 Bolts and ASTM A194 Grade 8 SS 304 Nuts offer excellent resistance to atmospheric oxidation and industrial fluids.
Every batch undergoes 100% PMI testing, pitch gauge verification, and proof load testing for zero-defect clamping under dynamic stress. As a premier SS 304 Nuts & Bolts Supplier, we provide EN 10204 3.1 Material Test Certificates (MTC) and third-party inspection reports with full heat traceability.
As an established SS 304 Nuts & Bolts Exporter, we regularly ship certified UNS S30400 Bolts and UNS S30400 Nuts packages across the Middle East, Europe, Southeast Asia, and the United States.
Explore our full range SS 304 Fasteners for complete material specifications.
| Parameter | Technical Details |
|---|---|
| Standards | ASTM A193 Grade B8 (Class 1 & Class 2), ASTM A194 Grade 8, ASME B18.2.1, ASME B18.2.2, DIN 931 / 933 / 934 |
| Material Grades | Stainless Steel 304 (UNS S30400), 304L (UNS S30403), 304H (UNS S30409) |
| Bolt Configurations | Hex Bolts, Heavy Hex Bolts, Stud Bolts, Socket Head Cap Screws, Flange Bolts, U-Bolts |
| Nut Configurations | Hex Nuts, Heavy Hex Nuts, Nylon Insert Lock Nuts, Jam Nuts, Dome Cap Nuts, Flange Nuts |
| Size Range | M3 to M100 (1/8" to 4" Diameter) | Length: Up to 1500 mm / Custom Cut Lengths |
| Thread Profiles | METRIC, BSW, BSF, UNC, UNF, UNEF, NPT, ACME Threading |
| Coatings & Finish | Passivated, Teflon (PTFE) Coated, Bright Zinc Plated (BZP), Hot Dip Galvanized (HDG), Cadmium |
| Testing Compliance | ASTM F606, ISO 898-1, Proof Load Testing, PMI Testing, Hardness Testing |
When specifying UNS S30400 Bolts and UNS S30400 Nuts, choosing the correct subtype depends on operating temperatures, welding requirements, and chemical exposure:
Need Marine-Grade Resistance? For severe marine immersion or chloride pitting conditions, compare with our molybdenum-alloyed 316 Nuts & Bolts selection.
| Grade | UNS | Werkstoff Nr. | EN Standard | Japanese JIS |
|---|---|---|---|---|
| SS 304 | UNS S30400 | 1.4301 | X5CrNi18-10 | SUS 304 |
| Element | SS 304 Nuts & Bolts | SS 304L Nuts & Bolts | SS 304H Nuts & Bolts |
|---|---|---|---|
| Carbon (C) | 0.08 max | 0.030 max | 0.04 – 0.10 |
| Manganese (Mn) | 2.00 max | 2.00 max | 2.00 max |
| Silicon (Si) | 0.75 max | 0.75 max | 0.75 max |
| Phosphorus (P) | 0.045 max | 0.045 max | 0.045 max |
| Sulfur (S) | 0.030 max | 0.030 max | 0.030 max |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 8.0 – 10.5 |
| Nitrogen (N) | 0.10 max | 0.10 max | — |
| Mechanical Property | SS 304 Nuts & Bolts | SS 304L Nuts & Bolts | SS 304H Nuts & Bolts |
|---|---|---|---|
| Tensile Strength (MPa) Min | 515 | 485 | 515 |
| Yield Strength (0.2% Offset, MPa) Min | 205 | 170 | 205 |
| Elongation (% in 50mm) Min | 40 | 40 | 40 |
| Hardness (HB) Max | 201 | 201 | 201 |
| Hardness (HRB) Max | 92 | 92 | 92 |
As a premier SS 304 Nuts & Bolts Exporter, we maintain an active international supply network delivering certified metric and imperial bolting packages:
Mumbai
Pune
Chennai
Faridabad
Saudi Arabia
Qatar
Oman
Kuwait
Germany
Italy
Netherlands
Poland
Singapore
Malaysia
Vietnam
Indonesia
Michigan
Illinois
Texas
| Inspection Method | Evaluation Parameters |
|---|---|
| Dimensional Metrology | Calipers, micrometers, and thread gauges checking pitch tolerances and lengths per ASME B18.2.1/DIN. |
| Ultrasonic Testing (UT) | Non-destructive scanning per ASTM A388 / EN 10228 detecting internal voids and forging flaws. |
| Chemical Analysis & PMI | Handheld Spectro PMI verifying Chromium (18–20%) and Nickel (8–10.5%) chemistry. |
| Carbon Verification | OES testing confirming carbon limits (0.030% max) for Grade 304L. |
| Mechanical & Hardness | Proof load, tensile, and Rockwell B / Brinell hardness testing per ASTM A193/A194. |
| Traceability & MTC | EN 10204 3.1 MTCs, full heat traceability, and optional SGS/TUV/BV TPI. |
A: Class 1 bolts are carbide solution treated for maximum corrosion resistance, while Class 2 bolts undergo additional strain hardening to achieve higher tensile yield properties.
A: According to ASME/ASTM specifications, ASTM A193 B8 bolts are standardized to pair with ASTM A194 Grade 8 SS 304 Nuts for high-pressure service.
A: Galling is mitigated by applying anti-seize lubricants (molybdenum disulfide or nickel-based paste) and controlling tightening speed during assembly.
A: Every shipment from our SS 304 Nuts & Bolts Supplier inventory includes full EN 10204 3.1 Material Test Certificates, PMI chemical reports, and proof load test results.
A: Yes, as an established SS 304 Nuts & Bolts Manufacturers, we supply custom cut lengths up to 1500 mm with custom metric or imperial thread pitches.
Contact Nirvaan Overseas—your trusted SS 304 Nuts & Bolts Manufacturer in India, SS 304 Nuts & Bolts Supplier, and SS 304 Nuts & Bolts Exporter—for direct factory pricing, custom orders, EN 10204 3.1 certification, and fast global delivery.