Furnace and kiln equipment run hot enough to warp ordinary steel bolts - that's the gap Inconel 601 Bolts fill. Oshwin Overseas manufactures these fasteners in Mumbai, India, to ASTM B166 UNS N06601. Inconel 601 holds its strength and resists scaling even above 1000°C, better than most nickel alloys.
We produce Alloy 601 hex bolts, hex nuts, stud bolts and threaded rod as per client's drawing. Oshwin supplies Inconel 601 bolting to UAE, Saudi Arabia, Qatar and the USA, with mill certificates on every order.
2200°F Oxidation Life
Aluminum-bearing alloy built for continuous high-heat service.
Imperial & Metric In Stock
UNC 1/2"-5/8" and M10-M16 ready for immediate dispatch.
Service Temp
- Grade
- UNS N06601
- Standard
- AMS 5715 / ASTM B166
- Size Range
- M5-M24 / ¼″-1″
- Hardness
- 85 HRB max (annealed)
- MTC
- EN 10204 3.1
- Lead Time
- 2-5 Days
Inconel 601 Hex Bolts Manufacturer in India, Stocked in Imperial and Metric Thread Sizes
ASTM B166 UNS N06601 Stud Bolts & Threaded Rod in UNC 1/2"-5/8" and Metric M10-M16 Threads
Table of Contents
- Inconel 601 Bolts Specification
- UNS N06601 Fasteners Imperial & Metric Sizes - In Stock
- Alloy 601 Fastener Types - Every Type We Supply
- ASTM B166 UNS N06601 Bolts Chemical Composition
- Nickel 601 Bolts Mechanical Properties
- Inconel Alloy 601 Fasteners Equivalent Grades
- DIN 2.4851 Fasteners High-Temperature Oxidation Resistance
- Nickel 601 Nut Bolt Torque Chart
- AMS 5715 Bolts Thread Pitch Chart & Nut Compatibility
- ASTM F468 UNS N06601 Bolts Head Marking Example
- Common Alloy 601 Fastener Enquiries We Handle
- Applications of Inconel Alloy 601 Fasteners
- Inconel 601 Bolts Value-Added Services
- Oshwin Overseas Manufacturing Expertise
- UNS N06601 Bolting Material Combination
- AMS 5870 Bolts & Nuts Classification
- ASTM F2281 UNS N06601 Bolts Thread Types
- DIN 2.4851 Fasteners Surface & Coating
- Inconel 601 Bolts Standards Compliance
- AMS 5715 Socket Head Bolts - Standards & Sizes
- Testing, Documentation & Third-Party Inspection
- Our Export Network
- Recent Alloy 601 Fastener Export Supplies
- Delivery Estimate From Ready Stock
- FAQs - Inconel 601 Bolts
Inconel 601 Bolts Specification
Oshwin Overseas runs both cold-headed and hot-forged production lines for Inconel 601 Bolts from our Kalamboli, Navi Mumbai factory. Smaller diameters up to M20 are cold formed for tighter thread tolerance. Larger sizes and custom stud bolts go through hot forging before final annealing.
Inconel 601 Cold Headed Bolts
M2-M24 / 1/8″-1″, lengths 3-200mm
Alloy 601 Hot Forged Fasteners
M24-M80 / 1″-3″, lengths up to 900-1200mm
Certification
EN 10204 3.1 Material Test Certificate
Compliance
NACE MR0175, PED 2014/68/EU on request
Service Range
Cryogenic to 2200°F (1204°C) oxidizing
Hex Bolt Dimensions
ASME B18.2.1 - head, WAF & thread length
Hex Nut Dimensions
ASME B18.2.2 - thickness & WAF
Thread Tolerance
UNC Class 2A/2B and Metric 6g/6H
Sizes Buyers Order Most
Same-Day Quote - share your bolt type, size and standard, get an ex-Mumbai price within 24 hours.
UNS N06601 Fasteners Imperial & Metric Sizes - In Stock
UNS N06601 fasteners stay ready for immediate delivery in both UNC Imperial and Metric threads at our Navi Mumbai stockyard. In-house custom cutting is available for lengths outside the standard range.
Lengths cut and threaded to drawing. Class 2A/2B UNC tolerance and Metric 6g/6H, confirmed on request. Inconel 601 heavy hex bolts for flange duty are made to drawing above 3/4″ and M20.
Inconel 601 Bolts Manufacturer in India - Mumbai, Since 1999
Every batch goes through annealing, machining and testing before it ships.
Request Quote NowAlloy 601 Fastener Types - Every Type We Supply
Product photography for this grade is still being shot at our Mumbai facility. Every type below is stocked and ready to quote. Socket head cap screws and other head styles are cut to drawing on request.
ASTM B166 UNS N06601 Bolts Chemical Composition
Per ASTM B166 / AMS 5715 (Ni-Cr-Fe with aluminum addition). Iron makes up the balance. Full heat-wise composition on the EN 10204 3.1 certificate.
Nickel 601 Bolts Mechanical Properties
Inconel 601 Bolts ship in the solution-annealed condition. Unlike age-hardenable superalloys, 601 gets its strength purely from the alloy mix, so tensile, yield and hardness stay consistent from bar stock to finished bolt.
Values shown are for the AMS 5715 solution-annealed condition, our standard ex-stock supply.
Inconel Alloy 601 Fasteners Equivalent Grades
DIN 2.4851 Fasteners High-Temperature Oxidation Resistance
Inconel 601's aluminum addition is what sets it apart from other nickel-chromium fasteners. It forms a tight, adherent alumina scale on top of the usual chromia layer, which is what pushes its oxidation life well past Inconel 600 or standard 300-series stainless bolting.
Nickel 601 Nut Bolt Torque Chart
Bolt torque follows the formula T = K × F × d. F is the target clamp load, d is the nominal bolt diameter, and K is a friction coefficient set by the lubricant. This holds for Inconel 601 the same way it does for steel bolting.
Galling Risk
Nickel-alloy threads gall under dry torque - always lubricate
Anti-Seize
Use a nickel-alloy-rated, high-temp anti-seize compound
High-Temp Joints
Re-torque after first thermal cycle on furnace and heat-treat bolting
Buyer-Specified Torque
We confirm your exact torque target (e.g. 40Nm) - never a generic figure
AMS 5715 Bolts Thread Pitch Chart & Nut Compatibility
AMS 5715 bolts thread pitch follows standard ISO metric coarse pitch and UNC series. The same dies used on steel cut these threads into 601 bar stock.
| Nominal Size | M5 | M6 | M8 | M10 | M12 | M16 | M20 | M24 |
|---|---|---|---|---|---|---|---|---|
| ISO Coarse Pitch (mm) | 0.80 | 1.00 | 1.25 | 1.50 | 1.75 | 2.00 | 2.50 | 3.00 |
| Nominal Size | 1/4" | 3/8" | 1/2" | 5/8" | 3/4" | 1" |
|---|---|---|---|---|---|---|
| UNC Threads/in | 20 | 16 | 13 | 11 | 10 | 8 |
Nut Compatibility: Inconel 601 Bolts pair best with same-alloy UNS N06601 hex nuts to ASTM B166. This gives a like-for-like strength and oxidation match. A lower-alloy stainless nut creates a galvanic mismatch and caps joint life to the weaker nut. We supplied matching Inconel 601 hex nuts on a client order to San Diego, California.
ASTM F468 UNS N06601 Bolts Head Marking Example
- Manufacturer's trademark or ID symbol on the head
- Material stamp "601" identifying the alloy, as required on several real buyer orders
- Heat or lot number, traceable to the EN 10204 3.1 certificate
- Marked "N06601" if the head has space
Nickel superalloys skip the SAE/ASTM grade-line marks used on steel bolts. Instead we trace each bolt by its material stamp and heat number.
Common Alloy 601 Fastener Enquiries We Handle
Here are recent requirements we've handled for Inconel 601 Bolts and Nuts.
Inconel 601 hex bolt, nut & washer sets - UNS N06601, 1/2"-13UNC and 5/8"-11UNC, for a California furnace-equipment buyer.
Metric Inconel 601 hex bolt sets - M10-1.50 through M16-2.0, fully threaded, Tolerance 6G/6H, for a Malaysia buyer.
Inconel 602/601 transition-grade bolts - M12-1.75 x 40mm, for a heat-treat furnace order.
High-temperature furnace fixture bolting - corrosion-rated to 1200°C, matched against oxidation risk on 601 assemblies.
UNS N06601 flange bolts - 3/8″ diameter and similar, for high-temperature bolted joints.
Small-quantity Nickel Alloy 601 precision orders - M5 hex bolts down to 2000+ pieces, no plating needed.
Inconel 601 socket head cap screws - small-batch precision orders, tight thread tolerance, with EN 10204 3.1 traceability.
Inconel 601 screws in grub, cap and machine-screw styles - cut to length, no minimum order for repeat customers.
Alloy 601 M16 hex bolt sets to ANSI B1.1 - fully threaded, 40mm long, shipped to Panama City, Florida.
UNS N06601 thermocouple protection hardware - fasteners for furnace-mounted thermocouple wells.
Inconel 601 material bolts, custom length - 250mm length, 10mm dia., for an Indian buyer.
Alloy 601 forged SHCS in mixed sizes - 1/2"-13 and 3/8"-16, for a Gulf refinery client.
Inconel 601 partially threaded hex bolt - 3/8"-16 x 2.5"LG, for a repeat USA buyer.
Inconel 601 hex bolt & washer set to ASTM B166 - "601"-stamped, for a San Diego, California order.
Applications of Inconel Alloy 601 Fasteners
Furnace & Heat-Treating Equipment
Petrochemical Cracking Furnaces
Thermocouple Protection Tubes
Gas Turbine & Combustion Hardware
Waste Incineration & Flue Systems
Inconel 601 Bolts Supplier in India with NACE & PED Compliance
High-oxidation-life stock, ready for immediate dispatch.
Get Supplier QuoteInconel 601 Bolts Value-Added Services
Oshwin also offers value-added services on Inconel 601 fasteners, beyond stock supply. All of it happens in-house at our Kalamboli, Navi Mumbai facility.
Drilling
Tapping
Threading
Pipe Threading
Chamfering
Turning
Bending
Passivation
Heat Treating
Annealing
Oshwin Overseas Manufacturing Expertise
Oshwin's skilled production line handles material drawing, annealing, forging and tapping within our own factory. As an Inconel 601 bolts manufacturer, this in-house control helps us hold tight thread tolerance on solution-annealed stock.
UNS N06601 Bolting Material Combination
Choosing a compatible flange, gasket and nut material for an Inconel 601 bolted joint avoids galvanic corrosion and preload loss at high temperature.
AMS 5870 Bolts & Nuts Classification
ASTM F2281 UNS N06601 Bolts Thread Types
DIN 2.4851 Fasteners Surface & Coating
Zinc plating and hot-dip galvanizing don't work on nickel superalloys. Those coatings are made for carbon steel, so we don't offer them on Inconel 601 fasteners.
Inconel 601 Bolts Standards Compliance
We accept third-party inspection on every order along with full standards compliance and material traceability.
AMS 5715 Socket Head Bolts - Standards & Sizes
Alloy 601 Socket Head Cap Screws are made to EU, ASME, British BS, Indian IS, ISO and DIN standards. Size M2 through M36 stays in stock, larger sizes made to drawing.
Testing, Documentation & Third-Party Inspection
Our Export Network
As Inconel 601 bolts suppliers in USA, we ship regular volume to San Diego CA and Panama City FL. We're also active as inconel bolts suppliers in Malaysia and the wider Southeast Asia region. The Gulf and Europe order regularly too.
Americas
USA
Canada
Panama
Middle East
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Europe
France
United Kingdom
Netherlands
Germany
Italy
Africa
South Africa
Egypt
Nigeria
Southeast & South Asia
Singapore
Malaysia
Thailand
Indonesia
Philippines
Vietnam
South Korea
Australia
Recent Alloy 601 Fastener Export Supplies
Mumbai
San Diego, CA
Product: Inconel 601 Hex Bolt, Nut & Plain Washer, Tolerance 2A/2B
Size: 1/2"-13UNC x 1-5/8", Fully Threaded, 120 sets
Mumbai
San Diego, CA
Product: Inconel 601 Hex Bolt, Fully Threaded, Tolerance 2A
Size: 5/8"-11UNC x 1-5/8", 100 pieces
Mumbai
Malaysia
Product: Inconel 601 Hex Bolt, Nut & Plain Washer, Tolerance 6G/6H
Size: M10-1.50 x 25mm, Fully Threaded
Mumbai
Malaysia
Product: Inconel 602/601 Hex Bolt, Fully Threaded, Tolerance 6G
Size: M12-1.75 x 40mm
Mumbai
Panama City, FL
Product: Inconel 601 Hex Nut & Plain Washer, Tolerance 6H
Size: M12-1.75
Mumbai
Panama City, FL
Product: Inconel 601 Hex Bolt, Nut & Plain Washer, Tolerance 6G/6H
Size: M16-2.0 x 40mm, Fully Threaded
Delivery Estimate From Ready Stock
Ships from Mumbai
Stock orders leave our facility in 2-5 working days
Sea Freight
Best economy option, 15-30 days depending on port
Air Freight
3-6 days when a furnace-shutdown deadline can't wait
Get a Firm Date
Tell us your discharge port and we'll confirm the ETA
USA20-28 daysMalaysia12-18 daysUAE8-14 daysFrance16-22 daysSea freight, port-to-port. Need it faster? Air freight brings any of these down to 3-6 days.
FAQs - Inconel 601 Bolts
601 has aluminum, which forms a protective layer under heat — so it handles high temperature the best. 600 has no aluminum, so it handles less heat. 625 has molybdenum instead — good for corrosion, not as good for high heat.
Inconel 601 bolts can handle continuous heat up to about 2200°F (1204°C) without breaking down. That's why they're used in furnaces, heat-treat baskets, and thermocouple parts.
Yes. Nickel alloy threads can seize up if tightened dry, just like other superalloys. Use a calibrated wrench with anti-seize or high-temp lubricant. The right torque value helps get a proper, secure fit.
Ex-stock UNC 1/4 inch to 1 inch and Metric M5 to M24. Our recent orders have run heavy on 1/2 inch to 5/8 inch UNC and M10 to M16, but other sizes are cut and threaded to drawing.
Yes. Alloy 601 bolts, stud bolts, Inconel 601 hex nuts and washers all ship to ASTM B166, ASTM F468 and ASTM F2281, traceable to UNS N06601 heat chemistry with EN 10204 3.1 MTC.
AMS 5715 covers Inconel 601 bar and rod, hot finished or cold drawn, then annealed. AMS 5870 covers rings and forgings. Bolts and studs are almost always made from AMS 5715 bar.
Order custom for lengths, diameters or head styles outside the M5-M24 / 1/4 inch-1 inch stock range, or for a non-standard thread pitch. Share your drawing with our manufacturer team for a quote.