ASTM B166 · AMS 5687 · UNS N06600

Tight thread tolerance matters most in Inconel 600 bolting - a loose fit can mean a failed joint at high temperature. Oshwin Overseas machines Inconel 600 Bolts, Hex Nuts and Studs in Mumbai, India, to ASTM B166 UNS N06600, and supplies them to UAE, Saudi Arabia, Qatar and the USA.

Threads are held to ANSI B1.1 Class 2A/2B, with stud external thread checked against ASTM F2281. We produce hex bolts, nuts, threaded rod and stud bolts as per client's drawing. Inconel 600 resists heat and oxidation well, common in furnace and heat-treatment equipment. Each batch is machined and gauge-checked in-house before dispatch.

2000°F Service Range

Oxidation resistant from cryogenic temperatures to 1093°C, no post-weld heat treatment.

M6-M64 Ready to Ship

Priority dispatch for furnace, chemical-processing and nuclear-grade orders.

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Inconel 600 Bolts
2000°F
Oxidation Resistance
(Cryogenic to 1093°C)
Grade
UNS N06600
Standard
ASTM B166 / AMS 5687
Size Range
M6-M64 / ¼″-2″
Hardness
184 HB max (annealed)
MTC
EN 10204 3.1
Lead Time
2-5 Days
Why Oshwin Overseas?
ANSI B1.1 Class 2A external threads checked on every Inconel 600 bolt shipped
No aging step needed - cold-worked Alloy 600 stock moves out within 2-5 days
Every consignment carries its own EN 10204 3.1 certificate, heat-traceable
Custom UNS N06600 lengths and heavy hex profiles cut to your drawing
Furnace, chemical-processing and nuclear-grade orders get the same on-time priority
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Inconel 600 bolts, nuts & washers ex-Mumbai, cold-worked condition. EN 10204 3.1 MTC with every consignment.

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Inconel 600 Hex Bolts & Nuts Manufacturer in India, Held to ANSI B1.1 Thread Tolerance Classes

ASTM B166 UNS N06600 Threaded Rod and Stud Bolts Machined to ANSI B1.1 Class 2A External Thread Tolerance per ASTM F2281

Inconel 600 Bolts Specification

Oshwin Overseas cold-forms and hot-forges Inconel 600 Bolts at our Kalamboli, Navi Mumbai plant. Smaller diameters stay cold headed for tighter thread control. Larger stud bolts and heavy hex sizes go through hot forging before final machining.

Cold Formed Alloy 600 Bolts

M6-M24 / 1/4″-1″, lengths 6-180mm

Nickel 600 Hot Forged Fasteners

M24-M64 / 1″-2″, lengths up to 900mm

Certification

EN 10204 3.1 Material Test Certificate

Compliance

NACE MR0175, ASME B31.3 on request

Service Range

Cryogenic to 1093°C (2000°F)

Thread Tolerance

ANSI B1.1 Class 2A external / 2B internal

Hex Bolt Dimensions

ASME B18.2.1 - head, WAF & thread length

Hex Nut Dimensions

ASME B18.2.2 - thickness & WAF

Sizes We Ship Most Often
M6M10 x 1.5 x 35mmM12 x 45mm L M16 x 30mm L1/2"-13UNC x 1-3/8"3/8"-16 x 2"

Fast Turnaround Quote - send your bolt size, standard and quantity, get an ex-Mumbai price within 24 hours.

Inconel 600 Bolts Supplier in India - Mumbai, Since 1999

Cold-worked, ANSI B1.1 thread-checked stock, ready for immediate dispatch.

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Every Alloy 600 Fastener Type We Stock

Photography for several Inconel 600 items is still in progress at our Mumbai facility. Every type below stays in stock and ready to quote. Head styles outside this list are cut to drawing on request.

Inconel 600 Heavy Hex Bolts
UNS N06600 Hex Bolt, Fully Threaded
Inconel 600 Stud Bolts
Inconel 600 Threaded Rod
Alloy 600 Socket Head Cap Screw
Inconel 600 Hex Nuts
UNS N06600 Heavy Hex Nut
Nickel 600 Lock Nut
Inconel 600 Washers
UNS N06600 Spring Washer
Alloy 600 Eye Bolt
Nickel Alloy 600 Flange Bolt
UNS N06600 Grub Screw
Inconel Alloy 600 Allen Bolt
Inconel 600 nuts and washers matched to the same heat as the bolt One EN 10204 3.1 certificate covers a full bolt-nut-washer set All Inconel 600 fasteners machined to ASTM B166 / UNS N06600 Cold-worked Alloy 600 hex bolts and stud bolts, both ex-stock Inconel 600 fasteners available from M6 up to M64 heavy hex

UNS N06600 Bolts Metric Sizes - In Stock

UNS N06600 Bolts metric sizes M6 to M64 stay ready for dispatch at our Navi Mumbai stockyard. In-house custom cutting covers any length outside this range.

Full Size Range, Ex-Stock (ASTM B166 / AMS 5687)
Hex Bolt / Stud Bolt
M6M8M10M12 M14M16M20M24 3/8″-2″
Hex Nut & Lock Nut
M6M8M10M12 M143/8″-1″
Hex Head Cap Screw
1/2"-13UNCM85/8"-11

Lengths cut and threaded to drawing. Left-hand thread and non-standard heavy hex sizes confirmed on request.

ASTM B166 UNS N06600 Fasteners Chemical Composition

Nickel (Ni)
72.0% min
Chromium (Cr)
14.0-17.0%
Iron (Fe)
6.0-10.0%
Manganese (Mn)
1.0% max
Copper (Cu)
0.5% max
Silicon (Si)
0.5% max

Per ASTM B166 / AMS 5687 (Ni-Cr-Fe, non-age-hardenable). Carbon stays at 0.15% max and sulfur at 0.015% max. Full heat-wise composition appears on the EN 10204 3.1 certificate.

Nickel 600 Bolt Mechanical Properties

Inconel 600 Bolt mechanical properties center on the annealed condition set by ASTM B166. Strength does not shift with a separate heat-treatment step, unlike age-hardenable grades.

80 ksi
Tensile Strength, min (552 MPa)
35 ksi
Yield Strength, min (241 MPa)
30 %
Elongation, min
184 HB
Hardness, max (annealed)

Values shown are for the ASTM B166 annealed condition. Cold-drawn AMS 5687 wire and small-diameter bar test above these minimums.

8.47 g/cm³
Density
1355-1413°C
Melting Range
214 GPa
Young's Modulus
14.9 W/m·K
Thermal Conductivity

Inconel 600 Bolts Cold-Work Strengthening vs Age-Hardened Alloys

Inconel 600 has no age-hardening response - strength only rises through cold work
Inconel 718, by comparison, needs an AMS 5663 aging step to reach full strength
Cold-headed Inconel 600 bolts pick up extra strength directly from the heading process
No post-weld heat treatment is needed after welding Alloy 600 assemblies

Inconel Alloy 600 Fasteners Equivalent Grades

UNS - USA
N06600
Werkstoff - Germany
2.4816
DIN - Germany
NiCr15Fe
BS - UK
3072-3076 NA14
Trade Names
Inconel® 600, Alloy 600, Nickel 600, Inconel Alloy 600

Alloy 600 Threaded Rod Exporter in India - Priority Cargo to USA & Thailand

Buyers get MTC 3.1 paperwork and a firm quote within one working day.

Request Export Quote

Alloy 600 Bolts for High-Temperature Oxidation & Chloride Resistance

Oxidation resistant from cryogenic temperatures up to 1093°C (2000°F)
High nickel content resists chloride-ion stress-corrosion cracking
Chromium content adds resistance to sulfur-bearing and mild oxidizing conditions
Common in furnace trays, heat-treating baskets and nuclear-grade steam generator hardware

UNS N06600 Hex Bolts & Nuts Torque Chart

Bolt torque follows T = K × F × d. F is the target clamp load, K is a friction coefficient set by the lubricant. The same formula applies to Inconel 600 as it does to steel bolting.

Galling Risk

Nickel-alloy threads gall under dry torque - always lubricate

Anti-Seize

Use a nickel-alloy-rated anti-seize or a high-temp dry lubricant

ANSI B1.1 Threads

Class 2A/2B fit keeps torque-tension behaviour predictable

Buyer-Specified Torque

We confirm your exact torque target - never a generic figure

A steel bolt torque chart doesn't transfer directly to Inconel 600. Share your clamp-load target and thread size, and we'll confirm the correct figure.

Alloy 600 Bolts Thread Pitch Chart & Nut Compatibility

Alloy 600 Bolts thread pitch follows standard ISO metric coarse pitch and UNC/UNF series. Threads are cut to ANSI B1.1 Class 2A external tolerance.

Nominal SizeM6M8M10M12M14M16M20M24
ISO Coarse Pitch (mm)1.001.251.501.752.002.002.503.00
Nominal Size3/8"1/2"5/8"3/4"7/8"1"
UNC Threads/in1613111098
UNF Threads/in242018161412

Nut Compatibility: Inconel 600 Bolts pair best with same-alloy UNS N06600 hex or heavy hex nuts to AMS 5665. This keeps corrosion resistance matched across the joint. A lower-alloy nut creates a galvanic mismatch and caps joint strength to the weaker nut. Our FL 33428 buyer specified matching UNS N06600 nuts and plain washers, Class 2B thread, with the bolt order.

Cold-worked threads pick up extra hardness at the root during forming
Rolled threads outlast cut threads because the grain flow stays intact
Oshwin rolls threads after cold heading, before final Class 2A inspection

ASTM F2281 UNS N06600 Bolts Head Marking Example

  • Manufacturer's trademark or ID symbol on the head
  • Material stamp "600" or "N6" identifying the alloy
  • Heat or lot number, traceable to the EN 10204 3.1 certificate
  • Marked "B166" or "F2281" if the head has space

Nickel superalloys skip the SAE/ASTM grade-line marks used on steel bolts. We trace each Inconel 600 bolt by its material stamp and heat number instead.

Inconel 600 Bolts, Nuts & Threaded Rod - Common Enquiries We Handle

Below is a sample of the Inconel 600 Bolts and Nuts orders we've supplied recently.

Q

Inconel 600 Nuts, bulk quantity - M6 and M8, 3000 pieces each, for a USA buyer.

Q

Inconel 600 Bolt, Nut & Washer sets, assembled - M10x35mm, M16x30mm, M12x45mm and 3/8″x2″ stud sets. DIN 933/934/125 dimensions, for a Chino, California buyer.

Q

Inconel 600 Hex Bolt, Fully Threaded to ANSI B1.1 Class 2A - 1/2″-13UNC x 1-3/8″. Matching Hex Nut and Plain Washers, for a Florida, USA buyer.

Q

Inconel 600 material Bolts & Nuts, small quantity - M10x30mm and M10x40mm lengths, for a San Diego, California buyer.

Q

Alloy 600 Hex Bolt and Nut sets - M10 L-40mm, 100 sets. M14 L-40mm, 20 sets, for a Thailand buyer.

Q

UNS N06600 Heavy Hex Bolts for flange bolting on oil & gas process equipment.

Q

Nickel 600 Threaded Rod cut to non-standard length for furnace and heat-treating equipment fabricators.

Q

Inconel Alloy 600 Socket Head Cap Screws - small-batch precision orders with EN 10204 3.1 traceability.

Applications of Nickel Alloy 600 Bolts

Furnace & Heat-Treating Equipment
Chemical & Petrochemical Processing
Nuclear Engineering Components
High-Temperature Reactor Internals
Food Processing Equipment

Inconel 600 Bolts Manufacturer in India with NACE Compliance

Cold-worked, ANSI B1.1 thread-checked stock, ready for immediate dispatch.

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Inconel 600 Bolts Value-Added Services

Stock supply is only part of what we offer on Inconel 600 fasteners. Our Kalamboli, Navi Mumbai plant handles these secondary operations in-house.


Drilling

Tapping

Threading

Pipe Threading

Chamfering

Turning

Bending

Plating

Cold Working

Stress Relieving

Oshwin Overseas Manufacturing Expertise

Oshwin runs bar drawing, cold heading, forging and thread rolling under one roof for Inconel 600. In-house control keeps thread class consistent across a non-age-hardening alloy.

Bar stock is drawn down to bolt-ready diameter, in-house
Cold heading raises strength directly, since Inconel 600 skips age hardening
Larger diameters move to hot forging, sized by drawing requirement
Thread rolling happens after forming, ahead of the final Class 2A check

Inconel 600 Bolting Material Combination

A compatible flange, gasket and nut material keeps an Inconel 600 bolted joint free of galvanic corrosion and preload loss.

Inconel 600 BoltInconel 600 Nut (best match)
Inconel 600 BoltMonel 400 nut (lower-duty joints only)
Flange MaterialInconel 601 / Incoloy 800H - check galvanic series
GasketSpiral wound, graphite or mica-filled for high-temp service
WasherSame-alloy UNS N06600, plain finish

Inconel 600 Bolts & Nuts Classification

By Head TypeHex, Heavy Hex, Socket, Eye Bolt
By Thread LengthFully Threaded, Partially Threaded
By ManufacturingCold Formed, Hot Forged, Machined
By ConditionAnnealed, Cold-Worked
By ApplicationFurnace, Chemical, Nuclear, Structural

Inconel 600 Nut Bolt Thread Types

UNCCoarse thread, general purpose
UNFFine thread, higher preload per turn
ISO Metric CoarseM6-M64 standard pitch
ANSI B1.1 Class 2A/2BExternal/internal thread tolerance, checked every batch
Left-Hand ThreadMade to drawing on request

Inconel 600 Bolts Surface & Coating

As MachinedBright annealed, no coating
PassivationAcid-based oxide layer, standard on request
Electroless NickelUniform thin coating, added corrosion barrier
Bright AnnealedClean, scale-free finish for food/pharma duty

Zinc plating and hot-dip galvanizing suit carbon steel, not nickel superalloys. We skip both on Inconel 600 fasteners for that reason.

Inconel 600 Bolts Standards Compliance

Every Inconel 600 order is fully traceable, and third-party inspection is welcome at any stage.

Federal Spec - Bolts & NutsFF-B-561, FF-B-588, FF-N-836
Federal Spec - Screws & WashersFF-S-85, FF-S-92, FF-W-92
MIL SpecificationsMIL-N-23229, MIL-N-6710, QQ-W-390
Aerospace / AMSAMS 5540, AMS 5580, AMS 5665, AMS 5687
SAE / ASTMASTM B166, ASTM F2281
ISOISO 898-1, ISO 3506-1
DIN / ENDIN 17742, DIN 17750-17754
BSBS 3072-3076 NA14

Inconel 600 Socket Head Bolts - Standards & Sizes

Alloy 600 Socket Head Cap Screws are made to ASME, British BS, Indian IS, ISO and DIN standards. Size M3 through M36 stays in stock, larger sizes made to drawing.

M3M4M5M6 M8M10M12M14 M16M20M24M30 M36

Testing, Documentation & Third-Party Inspection

Mechanical TestingTensile, hardness, elongation per batch
Chemical TestingSpectro analysis per heat
NDTPMI, dye penetrant on request
DocumentationEN 10204 3.1 MTC, packing list, COO
Third-Party InspectionSGS, BV, TUV, Lloyd's accepted
OriginMade in India, Kalamboli, Navi Mumbai

Our Export Network

As an Inconel 600 bolts supplier and distributor to the USA, we ship most volume there. Recent orders came from California, Florida and Thailand. We're also active as inconel bolts suppliers in Saudi Arabia and the wider Gulf, alongside Southeast Asia.

Americas
USAUSA CanadaCanada
Southeast & South Asia
ThailandThailand SingaporeSingapore VietnamVietnam MalaysiaMalaysia IndonesiaIndonesia PhilippinesPhilippines South KoreaSouth Korea AustraliaAustralia
Thailand is a repeat buyer for Inconel 600 hex bolt and nut sets.
Middle East
Saudi ArabiaSaudi Arabia UAEUAE QatarQatar KuwaitKuwait OmanOman
Europe & UK
United KingdomUnited Kingdom NetherlandsNetherlands GermanyGermany TurkeyTurkey BelgiumBelgium
Africa
South AfricaSouth Africa EgyptEgypt NigeriaNigeria

Recent Alloy 600 Bolt Export Supplies

Bulk Nuts
IndiaMumbai USAUSA

Product: UNS N06600 Hex Nuts

Size: M6 and M8, 3000 pcs each

Assembled Sets
IndiaMumbai USAChino, CA

Product: Inconel Alloy 600 Bolt, Nut & Washer Sets

Size: M10x35, M16x30, M12x45, 3/8″x2″ stud, 135 sets total

Class 2A Threads
IndiaMumbai USAFL 33428

Product: Nickel Alloy 600 Hex Bolt, Nut & Plain Washer

Size: 1/2″-13UNC x 1-3/8″, ANSI B1.1, 300 pcs total

Small Qty
IndiaMumbai USASan Diego, CA

Product: Alloy 600 Bolts & Nuts

Size: M10x30L and M10x40L, 5 bolts each, 10 nuts

Hex Sets
IndiaMumbai ThailandThailand

Product: Inconel 600 Hex Bolt & Nut Sets

Size: M10 L-40mm (100 sets), M14 L-40mm (20 sets)

Delivery Estimate From Ready Stock

Ships from Mumbai

Our warehouse dispatches stock items within 2-5 working days

Sea Freight

The lowest-cost route, running 15-30 days by port

Air Freight

Cuts transit to 3-6 days for a furnace shutdown or plant deadline

Get a Firm Date

Send your discharge port for a confirmed ETA

USAUSA20-28 days
ThailandThailand12-18 days
UAEUAE10-16 days
UKUK16-22 days

These are port-to-port sea freight estimates. Switching to air freight cuts any of them to 3-6 days.

FAQs - Inconel 600 Bolts

ASTM B166 or ASTM F2281 - which do I specify for Inconel 600 bolts?+

ASTM B166 covers the raw hot-finished or cold-drawn rod and bar. ASTM F2281 sets the finished fastener requirements - strength, thread class and marking. For a PO, write ASTM F2281 UNS N06600.

Why doesn't Inconel 600 need aging like Inconel 718?+

Inconel 600 doesn't age harden. Cold work builds its strength instead. Inconel 718 needs an AMS 5663 aging step for that. Choose 600 for easy weldability, 718 for higher strength.

What is the tensile and yield strength of Inconel 600 bolts?+

Per ASTM B166, annealed condition: 80 ksi (552 MPa) tensile strength minimum. Yield strength is 35 ksi (241 MPa) minimum, elongation 30% minimum. Cold-drawn AMS 5687 wire and small bar can test higher.

Is Inconel 600 or Inconel 625 better for chloride and marine environments?+

Both handle chloride and saltwater well. Inconel 625 adds molybdenum, so it resists pitting even better in seawater. Inconel 600 is the better pick for high-heat jobs, like furnaces.

Do Inconel 600 bolts need special torque or anti-galling precautions?+

Yes. Nickel threads gall if torqued dry. Always use anti-seize with a calibrated wrench. Skip generic steel torque numbers - ask us for the right spec.

What sizes of Inconel 600 bolts are available?+

Ex-stock: M6 to M64 metric, 1/4 inch to 2 inch UNC/UNF. Heavy hex and non-standard lengths are cut to drawing.

Do you supply small-quantity Inconel 600 nuts and washers alongside bulk bolt orders?+

Yes, even 10 pieces is fine. We ship small orders just as easily as big ones. Ask for bolt, nut and washer sets assembled together, same heat.

When should I order a custom Inconel 600 bolt size instead of stock?+

Go custom for a non-standard length. Same for a heavy hex outside M6-M64, or a left-hand thread. Just share your drawing with us for a firm lead time.

Inconel 600 Bolts, Hex Nuts & Threaded Rod - ASTM B166 / AMS 5687 UNS N06600
Cold-worked, ANSI B1.1 Class 2A thread-checked Inconel 600 Bolts, ISO 9001:2015 certified manufacturer in India