Oshwin Overseas manufactures and supplies Inconel 718 Hex Bolts from Mumbai, India. As a trusted Inconel 718 Bolts Supplier in USA, UK, UAE and Saudi Arabia, the company has served American, European and Gulf markets since 1999.
Oshwin is ISO 9001:2015 certified with in-house forging and heat-treatment. Stock includes stud bolts, washers, threaded rod and socket head cap screws to ASTM B637 UNS N07718. Every batch ships with mill test certificates.
Stocked Pre-Aged
No waiting on heat treatment - AMS 5663 condition, ready to ship.
M5-M24 In Stock
Priority dispatch for aerospace and oil-gas deadlines.
(AMS 5663)
- Grade
- UNS N07718
- Standard
- AMS 5663 / ASTM B637
- Size Range
- M5-M24 / ¼″-1″
- Hardness
- 331 HB min (aged)
- MTC
- EN 10204 3.1
- Lead Time
- 2-5 Days
ASTM B637 UNS N07718 Threaded Rod Manufacturer in India, Cut to Length on Request
Inconel 718 Bolts and Socket Head Cap Screws available in UNC Coarse and UNF Fine Threads to ASTM B637 / AMS 5662
Table of Contents
- Inconel 718 Hex Bolts Specification - Cold-Headed & Hot-Forged Range
- Every Alloy 718 Fastener Type We Stock - Hex Head Bolts to Threaded Rod
- UNS N07718 Alloy 718 Bolts Chemical Composition
- Inconel 718 Bolt Yield Strength
- AMS 5662 vs AMS 5663 - Which Condition to Specify for Alloy 718 Bolts
- Nickel Alloy 718 Bolts Metric Sizes - In Stock
- Inconel 718 Hex Bolts Dimensions
- Inconel Alloy 718 Bolts Equivalent Grades
- Alloy 718 Bolts for High-Strength Aerospace & Oil-Gas Orders
- Inconel 718 Hex Bolts & Nuts Torque Chart
- Nickel Alloy 718 Bolts Thread Pitch Chart & Nut Compatibility
- UNS N07718 Bolts Head Marking Example
- Common Inconel 718 Bolts, Nuts & Threaded Rod Enquiries We Handle
- Applications of Inconel 718 Hex Bolts
Inconel 718 Hex Bolts Specification
Oshwin Overseas runs both cold-headed and hot-forged production lines for Inconel 718 Hex 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 age hardening.
Inconel 718 Cold Headed Bolts
M2-M24 / 1/8″-1″, lengths 3-200mm
Alloy 718 Hot Forged Fasteners
M24-M100 / 1″-4″, lengths up to 1100-1500mm
Certification
EN 10204 3.1 Material Test Certificate
Compliance
NACE MR0175, API 6ACRA on request
Service Range
Cryogenic to 1300°F (704°C)
Hex Bolt Dimensions
ASME B18.2.1 - head, WAF & thread length
Hex Nut Dimensions
ASME B18.2.2 - thickness & WAF
Thread Tolerance
Coarse (UNC), Fine (UNF) & UNJF aerospace form
Sizes Buyers Order Most
Same-Day Quote - share your bolt type, size and standard, get an ex-Mumbai price within 24 hours.
Nickel Alloy 718 Bolts Metric Sizes - In Stock
Nickel Alloy 718 Bolts metric sizes M5 to M24 stay ready for immediate delivery at our Navi Mumbai stockyard. In-house custom cutting is available for lengths outside the standard range.
Lengths cut and threaded to drawing. UNJF aerospace thread form and sizes outside this range confirmed on request.
Inconel 718 Bolts Price
Inconel 718 bolts price moves with size, thread form and the AMS 5663 vs AMS 5662 condition you specify. The table below gives a rough US$ per-piece idea by grade so you can budget before contacting sales.
| Bolt Size | AMS 5663 Aged (Approx.) | AMS 5662 Annealed (Approx.) | Silver-Plated Add-On |
|---|---|---|---|
| M6 x 20mm Hex Bolt | US$ 3-5 / pc | US$ 2-4 / pc | +15-20% |
| M8 x 25mm Hex Bolt | US$ 4-7 / pc | US$ 3-6 / pc | +15-20% |
| M10 x 30mm Hex Bolt | US$ 6-10 / pc | US$ 5-8 / pc | +15-20% |
| 3/8"-16 x 2" Stud Bolt Set | US$ 9-14 / set | US$ 7-12 / set | +15-20% |
These figures are indicative only, meant to help you budget. Our price list covers the exact ex-Mumbai rate, matched to your size, quantity and standard.
Inconel 718 Bolts Manufacturer in India - Mumbai, Since 1999
Every batch goes through aging, machining and testing before it ships.
Request Quote NowEvery Alloy 718 Fastener Type We Stock - Hex Head Bolts to Threaded Rod
From fully threaded hex head bolts to partially threaded stud bolts, Oshwin stocks the full Inconel 718 fastener range. Hot forged bolts and cold formed bolts are both available depending on size.
UNS N07718 Alloy 718 Bolts Chemical Composition
Per AMS 5662/5663 (Ni-Cr-Nb-Mo, age-hardenable). Full heat-wise composition on the EN 10204 3.1 certificate.
Inconel 718 Bolt Yield Strength
Inconel 718 Bolts Mechanical Properties center on Yield Strength in the AMS 5663 aged condition. Tensile, elongation and hardness are also fixed by that heat treatment.
Values shown are for the AMS 5663 aged condition. The AMS 5662 annealed condition is softer - check your mill certificate before design use.
AMS 5662 vs AMS 5663 - Which Condition to Specify
Inconel 718 Hex Bolts Dimensions
Inconel 718 Hex Bolts dimensions follow the same head geometry as ASME B18.2.1 carbon-steel hex bolts. Head form is a tooling standard, not a material property. Values below cover our M10-M24 metric stock range.
| Head Height Min (mm) | Head Height Max (mm) | Across Corners Min (mm) | Across Corners Max (mm) | Across Flats Min (mm) | Across Flats Max (mm) | Body Dia. Min (mm) | Body Dia. Max (mm) | Nominal Size |
|---|---|---|---|---|---|---|---|---|
| 6.17 | 6.63 | 17.77 | 18.48 | 15.73 | 17.00 | 9.78 | 10.00 | M10 |
| 4.24 | 7.76 | 20.03 | 20.78 | 17.73 | 19.00 | 11.73 | 12.00 | M12 |
| 8.51 | 9.09 | 23.35 | 24.25 | 20.67 | 22.00 | 13.73 | 14.00 | M14 |
| 9.68 | 10.32 | 26.75 | 27.71 | 23.67 | 24.00 | 15.73 | 16.00 | M16 |
| 12.12 | 12.88 | 32.95 | 34.64 | 29.16 | 30.00 | 19.67 | 20.00 | M20 |
| 14.56 | 15.44 | 39.55 | 41.57 | 35.00 | 36.00 | 23.67 | 24.00 | M24 |
Full hex bolt dimensions to ASME B18.2.1 for other diameters shared on request. Stud bolt dimensions follow ASME B16.5/B16.47 flange thread-length rules instead of a fixed head table.
Inconel Alloy 718 Bolts Equivalent Grades
Alloy 718 Threaded Rod Exporter in India - Priority Cargo to USA & France
US and European buyers get MTC 3.1 paperwork and a firm quote within one working day.
Request Export QuoteInconel 718 Bolts for High-Strength Aerospace & Oil-Gas Orders
Inconel 718 Hex Bolts & Nuts Torque Chart
Bolt torque follows the formula T = K × F × d. F is the target clamp load and K is a friction coefficient set by the lubricant. This holds for Inconel 718 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 anti-seize or silver-plated finish
Silver-Plated Nuts
Cuts dry-torque values by roughly half - common on aerospace stud bolt sets
Buyer-Specified Torque
We confirm your exact torque target (e.g. 40Nm) - never a generic figure
Nickel Alloy 718 Bolts Thread Pitch Chart & Nut Compatibility
Nickel Alloy 718 Bolts thread pitch follows standard ISO metric coarse pitch and UNC/UNF series. The same dies used on steel cut these threads into 718 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 | 3/8" | 1/2" | 5/8" | 3/4" | 7/8" | 1" |
|---|---|---|---|---|---|---|
| UNC Threads/in | 16 | 13 | 11 | 10 | 9 | 8 |
| UNF Threads/in | 24 | 20 | 18 | 16 | 14 | 12 |
Nut Compatibility: Inconel 718 Bolts pair best with same-alloy UNS N07718 hex, heavy hex or Flexloc nuts to ASTM B637. This gives a like-for-like strength and corrosion match. A lower-alloy stainless nut creates a galvanic mismatch and caps joint strength to the weaker nut. We supplied matching Inconel 718 Flexloc nuts (silver-plated) on a client in Mayport, Florida order.
UNS N07718 Bolts Head Marking Example
- Manufacturer's trademark or ID symbol on the head
- Material stamp "718" identifying the alloy, as required on several real buyer orders
- Heat or lot number, traceable to the EN 10204 3.1 certificate
- Marked "AMS 5663" 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 Inconel 718 Bolts, Nuts & Threaded Rod Enquiries We Handle
Here are recent requirements we've handled for Inconel 718 Bolts and Nuts.
Alloy 718 stud bolt & nut sets to API 6ACRA - UNS N07718, 2 heavy hex nuts per stud, 7/8″ to 1-1/4″.
Small-quantity Nickel Alloy 718 precision orders - M5 hex bolts down to 2000+ pieces, coating options like electroless nickel flash.
High-temperature UNJF fasteners - corrosion-rated to 700°C, matched against galvanic risk with 718 assemblies.
Alloy 718 hex head cap screws to MIL-DTL-1222J - 180 KSI UTS minimum, with matching silver-plated flexloc nuts and stamped washers.
UNS N07718 flange bolts - 3/8″ diameter and similar, for high-pressure bolted joints.
Double-hex UNJF cap screws without plating - small quantities to tight aerospace thread tolerance.
Inconel 718 socket head cap screws - small-batch precision orders, tight thread tolerance, with EN 10204 3.1 traceability.
Inconel 718 screws in grub, cap and machine-screw styles - cut to length, no minimum order for repeat customers.
Inconel 718 grade Allen key bolts - 6 x 30mm, 50pcs shipped to Abu Dhabi, UAE.
UNS N07718 left-hand thread flange nut - M5 x 0.5 pitch, supplied to a UK buyer.
Inconel 718 material bolts, custom length - 300mm length, 12mm dia., 24mm A/F hex head for an Indian buyer.
Alloy 718 forged SHCS in mixed sizes - ½"-20 and 3/8"-24, 1.5″-2.25″ L, 100pcs total for Alberta, Canada.
Inconel 718 partially threaded 12-pt screw - 3/8"-16 x 2.5"LG, QTY 1200, for a Texas, USA buyer.
Inconel 718 hex head cap screw & washer set to ASTM B637 - MIL-DTL-1222J, 180 KSI UTS min, "718"-stamped, for Mayport, FL.
Applications of Inconel 718 Hex Bolts
Turbine Discs & Aerospace Fasteners
API 6ACRA Oil & Gas Equipment
High-Temperature Reactor & Turbine Bolting
High-Strength Structural Fasteners
Defense & MIL-Spec Hardware
Inconel 718 Bolts Supplier in India with NACE & API 6ACRA Compliance
High-strength, aged-condition stock, ready for immediate dispatch.
Get Supplier QuoteInconel 718 Bolts Value-Added Services
Oshwin also offers value-added services on Inconel 718 fasteners, beyond stock supply. All of it happens in-house at our Kalamboli, Navi Mumbai facility.
Drilling
Tapping
Threading
Pipe Threading
Chamfering
Turning
Bending
Plating
Heat Treating
Annealing
Oshwin Overseas Manufacturing Expertise
Oshwin's skilled production line handles material drawing, tempering, forging and tapping within our own factory. As an Inconel 718 bolts manufacturer, this in-house control helps us hold tight thread tolerance on age-hardened stock.
Inconel 718 Bolting Material Combination
Choosing a compatible flange, gasket and nut material for an Inconel 718 bolted joint avoids galvanic corrosion and preload loss.
Inconel 718 Bolts & Nuts Classification
Inconel 718 Nut Bolt Thread Types
Inconel 718 Bolts 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 718 fasteners.
Inconel 718 Bolts Standards Compliance
We accept third-party inspection on every order along with full standards compliance and material traceability.
Inconel 718 Socket Head Bolts - Standards & Sizes
Alloy 718 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 718 bolts suppliers in USA, we ship most volume there. Top destinations are McLean VA, Naperville IL, Tracy CA, Mayport FL and Houston TX. We're also active as inconel bolts suppliers in Saudi Arabia and the wider Gulf. France and Mexico order regularly too.
Americas
USA
Canada
Mexico
Middle East
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Europe
France
United Kingdom
Netherlands
Germany
Turkey
Belgium
Africa
South Africa
Egypt
Nigeria
Southeast & South Asia
Singapore
Malaysia
Thailand
Indonesia
Philippines
Vietnam
South Korea
Australia
Recent Inconel 718 Bolt Export Supplies
Mumbai
McLean, VA
Product: Stud Bolts with 2 Heavy Hex Nuts, UNS N07718
Size: 1-1/8″-1-1/4″, 4 sizes, 176 sets total
Mumbai
Naperville, IL
Product: Alloy 718 M5 Hex Head Bolts, Electroless Nickel Flash
Size: M5x10mm, 2000 pieces
Mumbai
Paris
Product: Alloy 718 Hex Cap Screws, Silver-Plated Flexloc Nuts & Stamped Washers
Size: 3/8-16UNC-2A, MIL-DTL-1222J, 1280+500 EA
Mumbai
Houston, TX
Product: Inconel 718 Cap Screw, High-Torque Rated
Size: 8mm dia x 25mm, buyer-specified 40Nm torque
Mumbai
Houston, TX
Product: Inconel 718 Flange Bolts
Size: 3/8″ diameter
Mumbai
Monterrey
Product: UNS N07718 Double Hex Bolts, No Plating
Size: .190-32-UNJF-3A x 0.625″, 4 pieces
Mumbai
Abu Dhabi
Product: Inconel 718 Grade Allen Key Bolts
Size: 6 x 30mm, 50pcs
Mumbai
United Kingdom
Product: UNS N07718 Flange Nut, Left-Hand Thread
Size: M5 x 0.5 pitch
Mumbai
Domestic
Product: Inconel 718 Material Hex Bolt, Custom Length
Size: 300mm L x 12mm Dia., 24mm A/F
Mumbai
Alberta
Product: Alloy 718 Forged Socket Head Cap Screws
Size: ½"-20 & 3/8"-24, 1.5″-2.25″ L, 100pcs
Mumbai
Texas
Product: Inconel 718 12-Point Screw, Partially Threaded
Size: 3/8"-16 x 2.5"LG, QTY 1200
Mumbai
Mayport, FL
Product: Inconel 718 Hex Head Cap Screws, Flexloc Nuts & Flat Washers
Size: 3/8-16UNC-2A, ASTM B637, 180 KSI UTS min, "718"-stamped, 1280+500+1780+3560 EA
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 an aerospace or oil-gas deadline can't wait
Get a Firm Date
Tell us your discharge port and we'll confirm the ETA
USA20-28 daysCanada22-30 daysMexico24-32 daysFrance16-22 daysSea freight, port-to-port. Need it faster? Air freight brings any of these down to 3-6 days.
FAQs - Inconel 718 Bolts
AMS 5662 is the softer condition used before the final heat treatment. AMS 5663 is aged and much stronger, most fastener buyers need this one.
In the AMS 5663 aged condition yield strength is around 150 ksi (1035 MPa). Tensile is around 185 ksi and hardness is around 331 HB. AMS 5662 annealed condition is much softer.
718 can be age hardened. A heat treatment step called AMS 5663 pushes it to about 185 ksi tensile. 625 only gets strength from its alloy mix and needs no heat treatment. Pick 718 for higher strength. Pick 625 if you want easier welding with no heat treatment needed after.
Yes. Nickel alloy threads gall under dry torque. Use a calibrated wrench with anti seize or a high temp lubricant. Always confirm your own torque spec instead of using a generic number.
Yes. We supply hex bolts, cap screws and stud bolts to ASTM B637 and AMS 5663. MIL-DTL-1222J certification and EN 10204 3.1 MTC are available on request.
Ex-stock: M5 to M24 metric, 1/4 inch to 1 inch UNC/UNF/UNJF. Aerospace UNJF threads and other sizes made to drawing.
Price depends on size, thread form and AMS 5663 vs AMS 5662 condition. A 7/8 inch x 6 inch stud bolt with 2 nuts costs about 6 to 7 dollars for one set. Larger sizes cost more, smaller sizes cost less. Share your size and quantity in a price list request for an exact quote.
Order custom if your joint holds pressure above standard flange class ratings. The same applies for a non-standard length, UNJF aerospace thread or a diameter outside M5-M24. Talk to our manufacturer team with your drawing.