Hastelloy C22 resists pitting even in wet chlorine and oxidizing acids, better than C276 in some conditions. Oshwin Overseas has earned a name as a reliable Hastelloy C22 Bolts manufacturer in India. It supplies flue gas desulfurization and chemical plants across UAE, Germany, USA and Vietnam. Alloy C22 hex bolts, threaded rod, stud bolts and washers are made to ASTM B574, UNS N06022. Each order is checked for size and material before it leaves the Mumbai plant.
Rated for wet chlorine, nitric acid and reducing-acid service alike.
Fine-thread precision sizes stay ex-stock for same-week dispatch.

Small-diameter Hastelloy C22 fasteners are precision CNC machined from solid bar. Cold-heading dies rarely pay off below 3/8 inch, so machining holds tighter tolerance. Larger stud bolts and odd head styles move to hot forging before final machining.
#10-24 UNC to 3/8-16 UNC, precision CNC turned
M10-M36 metric, forged blanks for larger custom orders
EN 10204 3.1 Material Test Certificate
NACE MR0175, PMI Testing on request
Cryogenic service up to 1250°F (677°C)
ASME B18.2.1 - head, width-across-flats & thread length
ASME B18.2.2 - thickness & width-across-flats
UNC, UNF & ISO metric, Class 2A/2B fit
Non-standard threads and lengths get cut to your drawing. Metric and larger imperial sizes up to M36 are made on request.
Get a Quote Today - send your drawing or size list. We'll reply with an ex-Mumbai price the same working day.
Hastelloy C22 Bolts Manufacturer in India - Mumbai, Since 1999
Heat-traceable from raw bar to the finished, boxed fastener.
Request Quote NowWe are currently shooting fresh product photos for this alloy range. Each type below stays in stock and ready to quote. Socket head cap screws and odd head styles are cut to drawing. Our regular scope covers Hastelloy C22 Stud Bolts and Hastelloy C22 screws. We also stock Hastelloy C22 hex nuts and Hastelloy C22 washers as standard.
Per ASTM B574, solution-annealed condition. Manganese, silicon, carbon, phosphorus, sulfur and vanadium stay tightly capped for weldability. Each heat's exact chemistry is listed on its own mill test certificate.
Values shown are ASTM B574 minimums for the annealed condition. Larger sections may see slightly different limits by agreement.
Alloy C22 Threaded Rod Exporter in India - Priority Cargo to USA, Canada & Qatar
Send your port of discharge and we'll confirm paperwork plus a firm quote within a day.
Request Export QuoteTorque follows T = K × F × d. F is your target clamp load; K is a friction coefficient set by lubrication. The same formula applies to Alloy C22 as it does to steel bolting.
C22 threads gall without lubrication - always use anti-seize
A nickel-rated compound keeps the friction coefficient K predictable
T = K × F × d - K changes with your chosen lubricant
Send your clamp-load target and thread size for a confirmed figure
Most Hastelloy C22 enquiries we receive ask for small, fine-thread sizes. Recent orders ranged from #10-24 UNC screws to 3/8-16 UNC hex bolts. We keep these sizes machined and ready, rather than waiting on a cold-heading run.
Hastelloy C22 Nut & Bolt Sets, 12x45mm - a small precision batch requested by a Canadian buyer.
M8 Alloy C22 Hex Bolts - a repeat Gulf process-plant order from Qatar.
M12x40 UNS N06022 Hex Bolt, Full Threaded - supplied with matching nut & washer. A USA buyer ordered 100 pieces.
Mixed Imperial Batch for Portland, Oregon - 1/4″-20 and 3/8″-18 hex bolts alongside #10-24 flat pan head screws.
Small-Quantity Precision Orders - buyers often ask if batches under 50 pieces of Alloy C22 screws are accepted. Yes, no minimum applies.
Matched Nut & Washer Sets - engineers request bolt, nut and washer from a single heat lot for full traceability.
NACE MR0175 Certified Batches - sour-service buyers need dual ASTM B574 and NACE documentation on one certificate.
Socket Head Cap Screw Conversions - a stainless drawing re-specified in Hastelloy Alloy C22 for a demanding duty.
Hastelloy C22 Bolts Supplier in India with NACE MR0175 Compliance
Sour-service ready stock, checked and packed the same week you inquire.
Get Supplier QuoteThird-party inspection and full material traceability are accepted on every order, in line with the standards below.
Small-diameter Hastelloy C22 fasteners are turned on CNC lathes, not cold-headed. Cold-heading dies only pay for themselves above roughly 3/8 inch diameter. Below that, machining from bar holds tighter thread tolerance for less tooling cost.
Qatar and the wider Gulf send steady Alloy C22 inquiries for process-plant bolting. USA and Canada lead demand for small precision batches, alongside interest from Southeast Asia and Europe.
Product: Hastelloy C22 Nut & Bolt Set, UNS N06022
Size: 12x45mm
Product: Alloy C22 Hex Bolts
Size: M8
Product: UNS N06022 Hex Bolt, Full Threaded, with Nut & Washer
Size: M12x40mm, 100 pieces
Product: Alloy C22 Hex Bolts & Flat Pan Head Screws, 1/4″-20, 3/8″-18 & #10-24
Size: Mixed batch, 100 Ea
Product: DIN 2.4602 Stud Bolts with Heavy Hex Nuts
Size: Chemical-plant flange bolting, typical order pattern
Packing starts the same day your order is confirmed
Lowest per-kilo cost, 15-30 days port to port
3-6 days - the fallback when a plant shutdown can't wait
Share your port and we'll lock in a delivery date
Port-to-port sea freight, above. In a hurry? Air cuts it to 3-6 days.
ASTM F468 is the American specification for the finished bolt screw or stud. ASTM B574 covers the raw bar it gets machined from. Order F468 when you need the finished fastener and B574 when you need bar stock.
Ex-stock from #10-24 UNC up to 3/8-16 UNC, plus M6 to M12 metric. Larger diameters up to M36 are machined to your drawing.
Yes - our machining line handles precision batches with no minimum order. Recent orders from the USA and Canada were under 200 pieces total.
C22 threads gall easily without lubrication, so always use anti-seize. Share your bolt size and coating choice, and we'll confirm torque.
C22 fasteners handle oxidizing acids like nitric acid and wet chlorine better. C276 is the stronger choice for reducing acids like hydrochloric acid. Not sure which fits your process? Send us your chemical exposure and we'll recommend the right fastener grade.
Yes, hex bolts, stud bolts and nuts to NACE MR0175 for sour service. We provide EN 10204 3.1 certification and PMI testing on request.
Yes - every set is traced back to a single heat number. One material test certificate covers the full bolt-nut-washer set.
Oshwin Overseas stocks Hastelloy C22 bolts ex-Mumbai for same-week quoting. We ship worldwide, with EN 10204 3.1 certification on every consignment.