Email:
[email protected]
Phone:
+91 93135 43530
Address:
133/1 Ground, Mansuri Block, Opp. Dudheshwar Water Tank, Ahmedabad-380004, Gujarat, India
Full Threaded Stud supplier in Ahmedabad, Gujarat. Available in B6, B7, B7M, L7, L7M, B8, B8M, B8T, B16, SS304, SS316, SS321, A2-50, A4-50, A4-70, Grade 4.6, 8.8, 10.9, 12.9. Metric M10–M72 and Inch ½”–3″. Coatings: Yellow Zinc, Cad Plated, Teflon…
Full Threaded Stud | B7 B8 SS304 SS316 | Metric Inch | Supplier India
Price on Request
About Company
- KRISHNA INDUSTRIES
- GST No. : 24AKLPP6499B1ZT
- Ahmedabad, Gujarat, India
- Manufacturer, Traders & Wholesale Supplier
- Year of Establishment : Since 1985
- Annual Turnover : Below Rs. 25 Crore Approx.
- Banker : APANI SAHAKARI BANK LIMITED
- Company CEO : Ruchin Panchal
- Constitution of Business : Proprietorship
- Leading Valve Supplier in India covering Maharashtra, Gujarat, Tamil Nadu, Karnataka, Telangana, Delhi NCR, West Bengal, Rajasthan, Madhya Pradesh, Uttar Pradesh, Punjab, Haryana, Andhra Pradesh, Odisha, Chhattisgarh, Jharkhand, Bihar, Kerala, Assam.
- Major Industrial Supply Cities: Ahmedabad, Vadodara, Rajkot, Surat, Mumbai, Pune, Thane, Nashik, Nagpur, Chennai, Coimbatore, Bengaluru, Hyderabad, Delhi, Noida, Gurugram, Faridabad, Kolkata, Jaipur, Indore, Bhopal, Lucknow, Kanpur, Ludhiana, Visakhapatnam.
Description
Full Threaded Stud | B7 B8 SS304 SS316 | M10–M72 | ½”–3″ | Supplier India
Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT | IEC: AKLPP6499B
MOQ: 10 Nos | Metric Size: M10–M72 | Inch Size: ½”–3″
Grades: B6, B7, B7M, L7, L7M, B8, B8M, B8T, B16, SS304, SS316, SS321, A2-50, A4-50, A4-70, 4.6, 8.8, 10.9, 12.9
Introduction – Full Threaded Stud Supplier India
Krishna Industries (KELOR), based in Ahmedabad, Gujarat, India, is a trusted B2B supplier of Full Threaded Studs sourced from verified Indian manufacturers. We supply Full Threaded Studs across all major material grades — ASTM A193 B7, B7M, B8, B8M, B8T, B6, B16, Stainless Steel SS304, SS316, SS321, A2-50, A4-50, A4-70, and commercial grades 4.6, 8.8, 10.9, 12.9 — in Metric sizes M10 to M72 and Inch sizes ½” to 3″ — with Yellow Zinc, Cad Plated, Teflon Blue, Zinc Plated, and Plain Finish coating options.
A Full Threaded Stud is a headless fastener threaded along its entire length — used in flange joints, pressure vessel assemblies, heat exchangers, pipeline flanges, industrial equipment, and structural connections across Indian EPC, oil and gas, petrochemical, power, chemical, and infrastructure projects. Unlike a stud bolt (threaded only at both ends), the full threaded stud provides 100% threading — giving flexibility in engagement depth, nut positioning, and cut-to-length application.
Also referred to as: Full Thread Stud, All Thread Rod, Fully Threaded Rod, Threaded Bar, All Thread Stud, Thread Bar — widely used interchangeably across Indian EPC project BOMs and procurement documents.
Complete Grade and Material Guide — All Available Variants
ASTM A193 High Tensile and High Temperature Grades
| Grade | Material | Tensile Strength | Best For | Typical Application |
|---|---|---|---|---|
| B6 | Martensitic SS 410 | 125 ksi (862 MPa) | Moderate corrosion + high strength | Valve bodies, pump flanges, moderate chemical service |
| B7 | Cr-Mo Alloy Steel (4140/4142) | 125 ksi (862 MPa) | Most widely used — high strength, high temp | Pressure vessel flanges, pipeline flanges — standard Indian EPC spec |
| B7M | Cr-Mo (controlled hardness) | 105 ksi (724 MPa) | Sour gas / H2S service — NACE MR0175 | Sour gas pipelines, offshore, refinery H2S service |
| L7 | Cr-Mo Alloy Steel (low temp) | 125 ksi (862 MPa) | Low temperature service (-100°F / -73°C) | LNG, cryogenic, low-temperature process piping |
| L7M | Cr-Mo (low temp + NACE) | 105 ksi (724 MPa) | Low temp + sour service combined | Sour gas at low temperature, offshore cryogenic |
| B8 | Austenitic SS304 (A2) | 75 ksi (517 MPa) | Corrosion-resistant — general chemical service | Chemical plant flanges, food processing, SS304 piping |
| B8M | Austenitic SS316 (A4) | 75 ksi (517 MPa) | Higher corrosion — chloride service | Aggressive chemical, coastal, pharmaceutical, chloride media |
| B8T | Austenitic SS321 (Ti stabilised) | 75 ksi (517 MPa) | High temp austenitic — sensitisation resistant | High temp chemical, heat exchangers, SS321 piping |
| B16 | Cr-Mo-V Alloy Steel | 150 ksi (1034 MPa) | Very high temp and pressure service | Power plant steam flanges, boilers, high temp pressure vessels |
Stainless Steel Metric Grades (DIN / ISO)
| Grade | Material | Proof Load | Best For | Typical Application |
|---|---|---|---|---|
| SS304 / A2-50 | AISI 304 / EN 1.4301 | 500 MPa | General corrosion-resistant service | Food processing, water treatment, general industrial SS flanges |
| SS316 / A4-50 | AISI 316 / EN 1.4401 | 500 MPa | Chloride-resistant — standard grade | Chemical plant, coastal, moderate corrosive media |
| SS316 / A4-70 | AISI 316 / EN 1.4401 | 700 MPa | Chloride-resistant + higher strength | High-load chemical flanges, offshore, pharmaceutical |
| SS321 | AISI 321 / EN 1.4541 | — | High temp — Titanium stabilised | High temperature flanges, heat exchangers, SS321 systems |
Commercial Carbon Steel Grades (IS / DIN / ISO)
| Grade | Tensile Strength | Best For | Typical Application |
|---|---|---|---|
| 4.6 | 400 / 240 MPa | Low load, general structural | General construction, non-critical bolting |
| 8.8 | 800 / 640 MPa | Medium-high load — most common structural | Structural steel, machinery, general industrial bolting |
| 10.9 | 1000 / 900 MPa | High load structural and industrial | Heavy structural, automotive, high-load machinery |
| 12.9 | 1200 / 1080 MPa | Highest tensile — critical applications | Critical structural, tooling, heavy machinery flanges |
Coating Options
| Coating | Corrosion Protection | Best For | Typical Use |
|---|---|---|---|
| Yellow Zinc | Good — 96–200 hrs salt spray | General industrial — most common in India | Piping flanges, EPC projects, structural bolting |
| Zinc Plated | Moderate — 72–96 hrs salt spray | Indoor / sheltered industrial service | Indoor machinery, general equipment assembly |
| Cad Plated | Excellent — aerospace standard | Aerospace, defence, high humidity | Aerospace, defence, offshore critical bolting |
| Teflon Blue (PTFE) | Excellent + anti-galling + torque control | Chemical service, SS fasteners, anti-seize | Chemical plant flanges, SS anti-galling service |
| Plain Finish | None — bare metal | High temperature or customer-coated | High temp service, supplied for further processing |
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Full Threaded Stud (All Thread Rod) |
| Thread Form | Metric ISO coarse/fine | Inch UNC/UNF |
| Metric Size Range | M10 to M72 |
| Inch Size Range | ½” to 3″ |
| Thread Coverage | 100% full length threading |
| Material Standards | ASTM A193 / A193M, DIN 976, IS 1367 |
| Testing Standard | ASTM A193 / A194, IS 1367, ASME B18.31.2 |
| Length | Custom cut lengths available |
| Compatible Nuts | A194 2H (B7), A194 8M (B8M), SS nuts for SS grades |
| MOQ | 10 Nos |
| HSN Code | 73181500 |
Full Threaded Stud vs Stud Bolt — Key Difference
| Feature | Stud Bolt | Full Threaded Stud |
|---|---|---|
| Threading | Both ends only — plain shank in middle | 100% full length threaded |
| Standard | ASME B16.5 flange bolting | ASTM A193 / DIN 976 / IS 1367 |
| Cut to Length | Fixed standard lengths | Cut to any required length |
| Nut Positioning | Fixed at ends | Flexible — anywhere along length |
| Typical Indian Use | ASME pressure flanges, API piping | Non-ASME flanges, structural, custom lengths |
Applications in Indian Industries
- Pipeline flange joints — water, oil, gas, chemical, and process piping
- Pressure vessel and heat exchanger flange bolting
- Pump and compressor casing bolting
- Valve body flange connections
- Structural steel and civil construction (commercial grades)
- Power plant boiler and steam flange connections (B16 grade)
- Chemical plant corrosion-resistant flange joints (B8M, SS316)
- Pharmaceutical plant SS316 utility piping flanges
- Sour gas and H2S service pipelines (B7M, L7M — NACE)
- LNG and cryogenic service (L7, L7M)
- Offshore and coastal plant bolting (A4-70, Teflon coated)
- EPC project bulk fastener BOM supply — all grades in single order
EPC Contractors — Bulk Supply and Project Documentation
- Complete BOM-based bulk supply — share fastener BOM for consolidated quotation
- Multiple grades and sizes in single order — B7, B8M, SS316, commercial grades together
- MTC for ASTM grades — chemical composition and mechanical property reports
- Hardness test certificate for NACE grades (B7M, L7M)
- GST invoices — GSTIN: 24AKLPP6499B1ZT
- Fast dispatch from Ahmedabad — 2 to 5 working days standard grades
- Custom cut lengths available — specify mm or inches
- Compatible nuts supplied together on request
Krishna Industries consolidates Full Threaded Studs with Stud Bolts, Hex Bolts, Hex Nuts, Washers, Flanges, Pipe Fittings, and Valves in single orders — one supplier, one invoice, one dispatch for complete EPC project fastener and piping material procurement.
PAN India Supply Coverage
Maharashtra — Mumbai, Pune, Navi Mumbai, Nashik, Aurangabad, Nagpur
Gujarat — Ahmedabad, Surat, Vadodara, Rajkot, Bharuch, Ankleshwar, Vapi, Dahej
Rajasthan — Jaipur, Jodhpur, Udaipur, Kota, Bhilwara
Delhi NCR — Delhi, Noida, Gurgaon, Faridabad, Ghaziabad
Tamil Nadu — Chennai, Coimbatore, Madurai, Tirupur, Salem
Karnataka — Bangalore, Hubli, Mysore, Belgaum, Mangalore
Telangana and Andhra Pradesh — Hyderabad, Vizag, Vijayawada, Kakinada
Madhya Pradesh — Indore, Bhopal, Jabalpur, Pithampur
Punjab and Haryana — Ludhiana, Amritsar, Chandigarh, Panipat
West Bengal — Kolkata, Durgapur, Asansol, Haldia
Odisha, Jharkhand, Chhattisgarh — all industrial zones
Export supply available FOB Mundra / JNPT. IEC registered exporter — IEC: AKLPP6499B.
Frequently Asked Questions
1. What is a full threaded stud?
A headless fastener threaded 100% along its entire length. Used in flange joints, pressure vessels, structural connections where full-length threading provides flexibility in nut positioning and cut-to-length application.
2. What is the difference between B7 and B8M?
B7 is chromium-molybdenum alloy steel — high strength, high temperature, standard Indian EPC flange spec. B8M is SS316 — lower strength but superior corrosion resistance for chemical plant, pharmaceutical, and chloride service.
3. Which grade for sour gas / H2S service?
B7M or L7M — controlled hardness grades compliant with NACE MR0175 / ISO 15156. Always specify NACE compliance when ordering for sour service.
4. Which coating for general EPC projects?
Yellow Zinc (yellow passivate) — most common coating in Indian EPC piping and flange projects. Standard specification in most Indian project material lists.
5. Which coating for chemical plant or SS fasteners?
Teflon Blue (PTFE coated) — reduces galling, controls torque coefficient, adds chemical resistance. Standard for SS316 fasteners in chemical and pharmaceutical plant flange joints.
6. What metric sizes are available?
M10 to M72 — covering all standard Indian project fastener sizes from small instrument flanges to large pressure vessel connections.
7. What inch sizes are available?
½” to 3″ UNC/UNF covering ASME flange bolting and general inch-size industrial requirements.
8. Can I get custom cut lengths?
Yes — specify required length in mm or inches when placing order or RFQ.
9. Can I order nuts together with studs?
Yes — A194 Grade 2H nuts for B7, A194 Grade 8M nuts for B8M, SS304/SS316 hex nuts for stainless grades — all available together.
10. Do you provide MTC for ASTM grades?
Yes — MTC with chemical composition and mechanical properties for all ASTM A193 grades. Hardness certificates for NACE grades on request.
11. What is the MOQ?
MOQ is 10 Nos per line item. BOM-based bulk orders welcome with project-rate pricing.
12. Can I order fasteners with valves and flanges in one order?
Yes — Krishna Industries supplies full threaded studs, stud bolts, hex bolts, nuts, flanges, valves, and pipe fittings in consolidated single orders — single GST invoice, single dispatch. Share your project BOM for consolidated quotation.
Related Products from Krishna Industries (KELOR)
- Stud Bolt with Nuts — ASME B16.5 standard flange bolting, A193 B7 / B8M
- Heavy Hex Nut — A194 2H / 8M compatible with full threaded studs
- Pipe Flange — Slip-on, Weld Neck, Blind — complete flange joint supply
- Wafer Check Valve — pipeline backflow prevention
- PN10 / PN16 Butterfly Valve — pipeline isolation valves
- Ball Valve — high-pressure process isolation
Conclusion
The Full Threaded Stud supplied by Krishna Industries (KELOR) covers every grade required for Indian EPC and industrial projects — ASTM A193 B6, B7, B7M, L7, L7M, B8, B8M, B8T, B16, SS304, SS316, SS321, A2-50, A4-50, A4-70, and commercial grades 4.6, 8.8, 10.9, 12.9 — Metric M10 to M72 and Inch ½” to 3″ — Yellow Zinc, Cad Plated, Teflon Blue, Zinc Plated, and Plain Finish coatings. Sourced from verified Indian manufacturers with MTC, GST documentation, and fast PAN India dispatch from Ahmedabad.
For EPC contractors, purchase managers, MRO teams, and bulk fastener buyers — contact Krishna Industries (KELOR), your trusted Full Threaded Stud supplier in Ahmedabad, Gujarat, India. Share your BOM or size-grade list for bulk pricing within 24 hours.
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