Hastelloy C276 Bolts from Oshwin Overseas are manufactured and supplied ex-Mumbai, India to ASTM B574 UNS N10276. Our manufacturing range covers C276 hex bolts, nuts, screws, threaded rod, stud bolts, washers, carriage bolts, countersunk bolts and L-head nut & bolt sets.
Oshwin is a leading Hastelloy C276 Bolts supplier in USA, Canada, Mexico and Australia, with regular orders from South Africa and the Netherlands. ISO 9001:2015 certified, in-house forged and machined, every batch dispatched with material test certificates.
Broad Acid Resistance
Rated for wet chlorine, chlorides and strong oxidizing acids.
M3-M30 Available Now
Chemical-plant and marine buyers get first pick when stock runs tight.
(ASTM F468)
- Grade
- UNS N10276
- Standard
- ASTM F468 / ASTM B574
- Size Range
- M3-M30 / ⅛″-1-¼″
- Hardness
- 20-32 HRC
- MTC
- EN 10204 3.1
- Lead Time
- 2-5 Days
Hastelloy C276 Hex Bolts & Nuts Manufacturer in India, Supplied as Matched Sets
ASTM B574 UNS N10276 Threaded Rod and Stud Bolts Stocked From M6 to M64, Technically Ranging up to M100 on Request
Table of Contents
- Hastelloy C276 Bolts Specification
- Alloy C276 Fastener Price
- Every Hastelloy C276 Fastener Type We Stock - Hex Bolt to Threaded Rod
- ASTM F468 UNS N10276 Chemical Composition
- Alloy C276 Hex Bolts Mechanical Properties & Tensile Strength
- Alloy C276 Bolts Corrosion Resistance in Acidic & Chloride Service
- UNS N10276 Bolts Equivalent Grades
- Hastelloy C276 Hex Bolts Dimensions
- Hastelloy C276 Bolt Torque & Anti-Galling Guidance
- Alloy C276 Carriage, Countersunk & DIN 933 Head Styles
- Common Hastelloy C276 Bolt & Screw Enquiries We Handle
- Applications of Hastelloy C276 Bolts
- Alloy C276 Bolts and Nuts Value-Added Services
- UNS N10276 Fasteners Standards Compliance
Hastelloy C276 Bolts Specification
Smaller Hastelloy C276 diameters are cold headed for tighter thread control. Larger bolts and stud bolts move to hot forging before the solution-anneal step. Both routes run at our own Mumbai facility.
Cold Formed
M3-M24 / 1/8″-1″, lengths 3-150mm
Hot Forged
M24-M30 / 1″-1-1/4″, lengths up to 300mm
Certification
EN 10204 3.1 Material Test Certificate
Compliance
NACE MR0175, PMI Testing on request
Service Range
Cryogenic to 750°F (400°C)
Hex Bolt Dimensions
ASME B18.2.1 - head, width-across-flats & thread length
Socket Head Availability
Hex socket head cap screws to DIN 912 pattern, M3-M30
Thread Tolerance
Coarse (UNC), Fine (UNF) & Metric ISO threads
Most-Ordered Alloy C276 Sizes
Non-standard lengths get cut and threaded to your drawing. Carriage, countersunk and L-head styles are produced beyond this range on request.
Get a Quote Today - send your drawing or size list. We'll reply with an ex-Mumbai price the same working day.
Alloy C276 Fastener Price
Hastelloy C276 bolts price tracks nickel and molybdenum content, so it moves with metal markets more than mild steel does. The table below is an indicative US$ per-piece guide, not a fixed rate.
| Bolt Size | Hex Bolt, Ex-Stock (Approx.) | Stud Bolt Set, 2 Nuts (Approx.) | PTFE-Coated Add-On |
|---|---|---|---|
| M6 x 20mm | US$ 4-6 / pc | US$ 8-11 / set | +10-15% |
| M8 x 25mm | US$ 5-8 / pc | US$ 10-14 / set | +10-15% |
| M10 x 30mm | US$ 7-11 / pc | US$ 13-18 / set | +10-15% |
| 3/4″-10UNC x 11″ | US$ 22-30 / pc | US$ 40-55 / set | +10-15% |
These figures are a budgeting guide only. Confirm your exact size, quantity and head style with our sales team for a firm ex-Mumbai quote.
Hastelloy C276 Bolts Manufacturer in India - Mumbai, Since 1999
Heat-traceable from raw rod to the finished, boxed bolt.
Request Quote NowEvery Hastelloy C276 Fastener Type We Stock - Hex Bolt to Threaded Rod
ASTM F468 UNS N10276 Chemical Composition
Per ASTM F468 (Ni-Mo-Cr-W, solid-solution strengthened). Each heat's exact chemistry is spelled out on its own MTC.
Alloy C276 Hex Bolts Mechanical Properties & Tensile Strength
Values shown are full-size test requirements per ASTM F468 for diameters up to 76mm. Larger sections are negotiated between mill and buyer.
Alloy C276 Bolts Corrosion Resistance in Acidic & Chloride Service
UNS N10276 Bolts Equivalent Grades
Hastelloy C276 Hex Bolts Dimensions
Hastelloy C276 Hex Bolts dimensions follow the same finished-hex-bolt head geometry used across bolting materials. Head form is a tooling standard, not a material property. Values below cover our 3/8″-1-1/4″ imperial stock range.
| Nominal Size | Body Dia. Max (in) | Across Flats Max (in) | Across Flats Min (in) | Across Corners Max (in) | Across Corners Min (in) | Head Height Max (in) | Head Height Min (in) |
|---|---|---|---|---|---|---|---|
| 3/8″ | 0.388 | 0.562 | 0.544 | 0.650 | 0.620 | 0.268 | 0.226 |
| 1/2″ | 0.515 | 0.750 | 0.725 | 0.866 | 0.826 | 0.364 | 0.302 |
| 5/8″ | 0.642 | 0.938 | 0.906 | 1.083 | 1.033 | 0.444 | 0.378 |
| 3/4″ | 0.768 | 1.125 | 1.088 | 1.299 | 1.240 | 0.524 | 0.455 |
| 7/8″ | 0.895 | 1.312 | 1.269 | 1.516 | 1.447 | 0.604 | 0.531 |
| 1″ | 1.022 | 1.500 | 1.450 | 1.732 | 1.653 | 0.700 | 0.591 |
| 1-1/8″ | 1.149 | 1.688 | 1.631 | 1.949 | 1.859 | 0.780 | 0.658 |
| 1-1/4″ | 1.277 | 1.875 | 1.812 | 2.165 | 2.066 | 0.876 | 0.749 |
Metric hex bolt dimensions (M3-M30) to ASME B18.2.1 shared on request. Stud bolt end-to-end length follows the flange thread-length rules in ASME B16.5/B16.47 instead of a fixed head table.
Alloy C276 Threaded Rod Exporter in India - Priority Cargo to UAE, Qatar & USA
Send your port of discharge and we'll confirm paperwork plus a firm quote within a day.
Request Export QuoteHastelloy C276 Bolt Torque & Anti-Galling Guidance
Torque follows T = K × F × d. F is the target clamp load, and K is a friction coefficient set by the lubricant. The formula holds for Hastelloy C276 the same way it does for steel bolting - only the coefficient changes.
Galling Risk
C276 threads seize without lubrication - use anti-seize every time
Anti-Seize
A nickel-rated compound or PTFE coating keeps K predictable
Torque Formula
T = K × F × d - K set by your chosen lubricant/coating
Buyer-Specified Torque
Send your clamp-load target and thread size for a confirmed figure
Alloy C276 Carriage, Countersunk & DIN 933 Head Styles
Common Hastelloy C276 Bolt & Screw Enquiries We Handle
Stud bolt & nut sets to ASME SB-574 UNS N10276 - 3/4″-10UNC studs with matching heavy hex nuts. Ordered by US plants.
Carriage bolts, cup or mushroom head - M5 metric, small precision batches for Australian buyers.
DIN 933 fully threaded hex bolts - M8 to M16, with matching DIN 934 hex nuts, MTC included.
Countersunk bolts to ASTM B574 - M3 small-diameter batches for Canadian instrumentation work.
Large-diameter Hastelloy C276 hex bolts - M16 to M25, Gulf oil & gas buyers, often with double washers.
L-head nut & bolt sets - M12, Gulf-region valve and flange assemblies.
Imperial hex bolts, nuts & washers - 6.35mm and similar sizes, US and Mexico repeat buyers.
Class 10 heavy bolt & nut sets - 3/4″ diameter, flat-neck pressure fittings for Asian buyers.
Applications of Hastelloy C276 Bolts
Flue Gas Desulfurization Scrubber Bolting
Pulp & Paper Bleaching Equipment
Chemical Process & Acid Handling Plants
Sour Oil & Gas, NACE MR0175 Service
Seawater & Marine Desalination Fasteners
Hastelloy C276 Bolts Supplier in India with NACE MR0175 Compliance
Sour-service ready stock, checked and packed the same week you inquire.
Get Supplier QuoteAlloy C276 Bolts and Nuts Value-Added Services
Beyond stock supply, Oshwin runs several finishing operations on Hastelloy C276 fasteners in-house at our Mumbai facility.
PTFE Coating
Tapping
Drilling
Threading
Turning
Chamfering
Pipe Threading
Solution Annealing
Bending
UNS N10276 Fasteners Standards Compliance
Third-party inspection and full material traceability are accepted on every order, in line with the standards below.
Our Export Network
Gulf buyers drive steady Hastelloy C276 volume - Ajman, Doha and Qatar order regularly. USA, Australia, Canada, Mexico and Mongolia also send frequent inquiries, alongside demand from Africa and Southeast Asia.
Americas
Canada
USA
Mexico
Middle East
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Europe & UK
United Kingdom
Netherlands
Germany
Turkey
Belgium
Africa
South Africa
Egypt
Nigeria
Southeast & South Asia
Australia
Singapore
Malaysia
Thailand
Indonesia
Philippines
Vietnam
South Korea
Mongolia
Recent Hastelloy C276 Bolt Enquiries
Mumbai
Chino, CA
Product: Stud Bolts with Heavy Hex Nuts, SB-574 UNS N10276
Size: 3/4″-10UNC x 11″ LG plus 5/16″-18UNC hex bolts, 192 pieces total
Mumbai
Australia
Product: Alloy C276 Carriage Bolts, Cup/Mushroom Head
Size: M5x50mm & M5x60mm
Mumbai
Ajman
Product: Hastelloy C276 Hex Bolts, Ex-Stock Priority
Size: M16x100mm, 10 pieces
Mumbai
Doha
Product: UNS N10276 Nut & Bolt Sets, Double Washer
Size: M25x125mm, 72 sets
Mumbai
Ontario
Product: ASTM B574 Countersunk Bolts, Small Diameter
Size: M3x10mm
Mumbai
Mongolia
Product: Hastelloy C276 Class 10 Bolt, Nut & Flat Neck Set
Size: 3/4″ x 3.15″, 1,006 units
Delivery Estimate From Ready Stock
Mumbai Warehouse
Packing starts the same day your order is confirmed
Sea Freight
Lowest per-kilo cost, 15-30 days port to port
Air Freight
3-6 days - the fallback when a plant shutdown can't wait
Get a Firm Date
Share your port and we'll lock in a delivery date
USA20-28 daysCanada22-30 daysUAE12-18 daysAustralia18-25 daysPort-to-port sea freight, above. In a hurry? Air cuts it to 3-6 days.
FAQs - Hastelloy C276 Bolts
ASTM F468 covers finished bolts, screws and studs with mechanical testing. ASTM B574 covers the round bar stock machined into those fasteners. Specify F468 for the finished part, B574 if you're buying raw rod.
Ex-stock from M3 to M30 metric and 1/8 inch to 1-1/4 inch. Larger diameters and custom lengths are cut and threaded to drawing.
Nickel and molybdenum content drive the base cost, alongside size, head style and certification. Small precision batches and non-standard heads like countersunk or carriage cost more per piece. Share your drawing for an exact quote.
Oshwin Overseas stocks Hastelloy C276 hex bolts ex-Mumbai for same-day quoting. We ship worldwide, with EN 10204 3.1 certification on every consignment.
C276 threads jam without lubrication. Always use anti-seize for nickel alloys. Share your bolt size and lube type. We'll confirm your torque.
Hastelloy C276 Bolts resists more acids, including wet chlorine. Inconel 625 stays stronger at high heat. Inconel 625 also welds easier. Choose C276 for chemicals. Go with 625 for heat and strength.
Yes. Hex bolts, stud bolts and nuts to NACE MR0175 for sour oil and gas service. We provide EN 10204 3.1 certification and PMI testing on request.
A rough guide is US$ 4 to 6 per piece for an M6 x 20mm hex bolt. Price rises with diameter and length. Stud bolt sets with two nuts cost more than a single bolt. Share your size and quantity for a firm ex-Mumbai quote.