Inconel 718 Fasteners

0 · at glance

Mortec At A Glance

Established

Since 2012 • 15+ yrs experience

Manufacturing Units

2 in-house units • Taloja & Mazgaon

Stockyard Area

8,850+ sq.ft • Ready-stock inventory

Certifications

ISO 9001:2015 • GST, IEC & MSME

Clientele

100+ clients • India & export markets

Export Reach

15+ countries • Europe, GCC & APAC

Testing Offered

Mechanical, chemical & proof load • MTC EN 10204 3.1 & 3.2

Shipment Documents

Invoice, Packing List • COO, COI, MTC, BL & Lab Report

Table of Content

Inconel 718 Fasteners Specification Inconel 718 Hex Nuts Dimensions WNR 2.4668 Hex Jam Nuts Weight Chart ASTM B637 UNS N07718 Fastener Types Alloy 718 Fasteners Chemical Compositiont Inconel 718 Bolts Mechanical Properties Inconel 718 Fasteners Equivalent Inconel 718 Hex Nuts Yield Strength Inconel 718 Bolt Torque Alloy 718 Screws High-Temperature Service Limits Inconel 718 Bolts NACE MR0175 Sour Service Compliance Inconel Alloy 718 Hex Bolts Finish & Coating Options Inconel 718 Threaded Rod Proof Load & Clamp Force Reference UNS N07718 Fastener Applications Nickel 718 Heavy Hex Nuts Testing & Certification

Precipitation-Hardened Alloy 718 Hex Bolts and UNS N07718 Nut Manufacturer in India, Refer Specification

High-temperature joints operating at 650°C require precipitation-hardened nickel alloy bolting solutions. Global buyers rely on our premium Inconel 718 fasteners for critical applications. Our extensive ex-stock inventory ensures quick dispatch within days. Every Inconel 718 Hex Nuts leaves our works with full mill test certification, ISO 15156 compliance on request. We provide NACE compliance and export packing built for long-haul freight.

As a dedicated Inconel 718 fasteners exporter, we deal direct from the forge without traders. Direct mill sourcing guarantees competitive pricing and faster answers for your business. Our grade desk confirms thread specs and torque before you place orders. You buy high-grade industrial fasteners with complete confidence, not guesswork.

01 · Specification

Inconel 718 Fasteners Specification

Share your size, quantity and required condition for a quick ex-Mumbai fastener quote, with original MTCs included in every dispatch.

DIN 2.4668 Studs Head & Drive Styles

Hex head, socket head, button head
Countersunk & hanger bolt styles

Inconel 718 Stud Bolts Thread Standards

ASME B18.2.1 / B18.2.2
ISO 4014/4017, DIN 933/931

DIN 2.4668 Bolts Surface Finish

Bright, passivated, self-colour
BZP, zinc-nickel & Dacromet on request

Alloy 718 Hex Bolts Testing & Documentation

PMI, proof load, tensile & hardness
MTC, third-party inspection on request

Inconel 718 Bolts Sour Service Compliance

NACE MR0175 / MR0103
ISO 15156 qualified lots available

Inconel 718 Screws Manufacturing Origin

Hot forged, cold headed or CNC machined
Indian & European mill sourced bar

Get ASTM B637 UNS N07718 Threaded Rod and Screws sizes from 3/6" to 4" at the Lowest Ex-Factory Price

02 · Range

Inconel 718 Hex Nuts Dimensions

Order NACE approved Nickel 718 Heavy Hex Nuts & Alloy 718 Hex Bolts across all pressure classes and dimensions.

Nominal Size Diameter, D inch	Tap End Full Thread Length, BM			Umax = 2P			Minimum Nut End Full Thread Length, Bmin
Nominal Size Diameter, D inch	Nominal	Min.	Max.	UNC & NC-5 Thread	UNF Thread	8UN Thread	L ≤ 10	10 < L ≤ 16	L > 16
1 1/8	1.688	1.625	1.750	0.286	0.167	0.250	2.500	2.750	3.250
1 3/8	2.063	2.000	2.125	0.333	0.167	0.250	3.000	3.250	3.750
1 1/2	2.250	2.188	2.313	0.333	0.167	0.250	3.250	3.500	4.000
1 5/8	2.438	2.375	2.500	-	-	0.250	3.500	3.750	4.250
1 3/4	2.625	2.563	2.688	0.400	-	0.250	3.750	4.000	4.500
2 1/2	3.750	3.675	3.825	0.500	-	0.250	5.250	5.500	6.000
2 3/4	4.125	4.050	4.200	0.500	-	0.250	5.750	6.000	6.500
1 7/8	2.813	2.750	2.875	-	-	0.250	4.000	4.250	4.750
2	3.000	2.925	3.075	0.444	-	0.250	4.250	4.500	5.000
3	4.500	4.425	4.575	0.500	-	0.250	-	6.500	7.000
3 1/4	4.875	4.775	4.975	0.500	-	0.250	-	7.000	7.500
4	6.000	5.900	6.100	0.500	-	0.250	-	8.500	9.000
1/4	0.375	0.350	0.400	0.100	0.071	-	0.750	1.000	1.500
5/16	0.469	0.440	0.498	0.111	0.083	-	0.875	1.125	1.625
3/8	0.563	0.532	0.594	0.125	0.083	-	1.000	1.250	1.750
7/16	0.656	0.620	0.692	0.143	0.100	-	1.125	1.375	1.875
1/2	0.750	0.708	0.792	0.154	0.100	-	1.250	1.500	2.000
9/16	0.844	0.802	0.896	0.167	0.111	-	1.375	1.625	2.125
5/8	0.938	0.892	0.983	0.182	0.111	-	1.500	1.750	2.250
3/4	1.1.25	1.075	1.175	0.200	0.125	-	1.750	2.000	2.500
7/8	1.313	1.258	1.368	0.222	0.143	-	2.000	2.250	2.750
1	1.500	1.438	1.562	0.250	0.167	-	2.250	2.500	3.000

03 · Weight

WNR 2.4668 Hex Jam Nuts Weight Chart

Approximate per-piece weights for budgeting and freight planning - exact mill-certified weight is confirmed on your RFQ.

Hex Nuts Weight Chart

Size	Heavy Hex	Finished Jam	Square	Heavy Square	Heavy Hex Jam
1″ Nut	42.5	17.6	36.3	51.5	23.5
1/2″ Nut	6.54	2.62	5.78	7.87	4.00
5/8″ Nut	11.9	4.93	10.8	14.3	6.96
3/4″ Nut	19.3	7.70	15.4	23.5	11.0
7/8″ Nut	29.7	12.0	24.5	36.2	16.7
11/8″ Nut	59.2	24.7	52.5	72.4	32.4
11/4″ Nut	78.6	36.1	70.6	95.5	45.8
13/8″ Nut	102	47.9	94.5	125.0	59.3
11/2″ Nut	131	60.9	122	161	74.8

04 · Product Range

ASTM B637 UNS N07718 Fastener Types

We are a leading Inconel 718 Fasteners Supplier in India, backed by ex-stock inventory across bolts, studs, nuts and washers.

Inconel 718 Hex Bolt

ASME B18.2.1 • 3/16″–4″

Wrench-fit head for high-torque joints
Most-ordered form, held ex-stock

UNS N07718 Stud Bolt

Continuous & Double-End • Custom Length

Cut and threaded to your drawing
Preferred for flange bolting sets

Inconel 718 Socket Head Cap Screw

ISO 4762 / ASME B18.3

Allen-key drive for confined spaces
Available cup, cone & dog point set screws

WNR 2.4668 Heavy Hex Nut

ASME B18.2.2 • 3/16″–4″

Matched thread class to your bolt lot
Standard or jam profile in stock

Alloy 718 Flat Washers

ASME B18.21.1

Inconel 718 Washer
Wide fender pattern for soft substrates

Nicrofer® 5219 Self Drilling Screw

Drill Point • Sheet & Cladding Fixing

Bores and threads in one pass
Used on marine cladding & ductwork

Nickel 718 Solid Rivet

Aerospace & Structural Grade

Cold-headed for consistent shear strength
Custom diameter and grip length

UNS N07718 Bolt

Dual Thread • Wood/Metal to Metal

Machine thread one end, wood/lag the other
Common in support bracket fixing

Inconel Alloy 718 Washer

High temperature nickel alloy washer.

Melting Point: 1430°C
Temprature Range:423° to 1300°F.

Inconel 718 Fasteners Manufacturer In Mumbai Since 2012

Send size, quantity and condition – we quote ex-stock and mill-order lead times within hours.

Request Quote Now

05 · Composition

Alloy 718 Fasteners Chemical Composition

Chemical Composition - UNS N07718 (% by weight, per ASTM B637)

Ni50.0–55.0Nickel (plus Cobalt)

Cr17.0–21.0Chromium

FeBalanceIron

Nb+Ta4.75–5.50Niobium+Tantalum

Mo2.80–3.30Molybdenum

Ti0.65–1.15Titanium

Al0.20–0.80Aluminium

Co1.00 maxCobalt

C0.08 maxCarbon

Mn0.35 maxManganese

Si0.35 maxSilicon

P0.015 maxPhosphorus

S0.015 maxSulfur

B0.006 maxBoron

Cu0.30 maxCopper

06 · Strength Data

Inconel 718 Bolts Mechanical Properties

Precipitation Hardened / Aged Condition (AMS 5663) - Typical High-Strength Bolt Grade

Tensile Strength1276 MPa / 185 ksi min

Yield Strength (0.2%)1034 MPa / 150 ksi min

Elongation12% min

Reduction Of Area15% min

Hardness331–429 HB (36–43 HRC)

Solution Annealed Condition (AMS 5662) - Soft, Machinable Bar Stock

Tensile Strength1034 MPa / 150 ksi min

Yield Strength (0.2%)517 MPa / 75 ksi min

Elongation30% min

Hardness28 HRC max

07 · Cross-Reference

Inconel 718 Fasteners Equivalent

UNS N07718 Bolt has regional equivalents, all sharing the same base Ni-Cr-Fe-Nb chemistry.

ASTM / AMS (USA)

UNS N07718
ASTM B637 (Bar & Fastener Stock)
AMS 5662 (Solution Treated)
AMS 5663 (Precipitation Hardened)

DIN / EN (Germany)

Werkstoff 2.4668
EN NiCr19NbMo
EN 10269

JIS (Japan)

NCF718

BS (United Kingdom)

BS 2901 NA51
Follows EN 10269 (2.4668)

AFNOR (France)

NC19FeNb

Common Trade Names

Nicrofer® 5219
Superimphy® 718

Need Mill Test Certificates With Your UNS N07718 Bolt Order?

Each bolt lot is issued with full chemical and mechanical test records, upgradeable to 3.2 witnessed on request.

Request MTC Sample

08 · Strength Class

Inconel 718 Hex Nuts Yield Strength

Yield strength determines your safe working preload. Here is how it varies across our two supply conditions..

Solution Annealed (AMS 5662)

Yield Strength: 517 MPa / 75 ksi min
Hardness: 28 HRC max
Best For: Bolts requiring further machining or forming

Precipitation Hardened (AMS 5663)

Yield Strength: 1034 MPa / 150 ksi min
Hardness: 331–429 HB
Best For: Finished high-strength hex bolts & studs

09 · Torque

Inconel 718 Bolt Torque Chart

Torque is not a fixed for Inconel Alloy 718 Hex Bolts - it depends on thread diameter, pitch, and friction (lubricated vs dry).

Start From Proof Load

Target preload is usually 75–90% of the bolt's proof load, itself derived from yield strength and stress area.

Apply The Torque Formula

T = K × D × F, where K is the friction (nut factor), D is nominal diameter and F is target clamp load.

Confirm Your K-Factor

K typically runs 0.15–0.20 dry and can drop below 0.13 with a nickel-based anti-seize or moly lubricant.

Verify By Test

For critical joints we recommend a calibrated torque-tension test on a sample lot before production tightening.

Send your thread size, pitch, & class and we'll return a size-specific torque figure - Request Your Torque Chart.

10 · Temperature

Alloy 718 Screws High-Temperature Service Limits

As a trusted Inconel 718 Fasteners exporter, we maintain structural integrity at temperatures where 300-series bolts fail.

Cryogenic to -253°C: No ductile-brittle transition

Continuous Service: Up to 650°C

Peak Rated Limit: Up to 704°C (1300°F)

Above 700°C: Consider Inconel X-750 or Waspaloy

11 · Sour Service

Inconel 718 Bolts NACE MR0175 Sour Service Compliance

A frequent requirement from our Middle East and African oil & gas buyers - here's what qualification covers.

Standard ReferencedNACE MR0175 / ISO 15156, cross-referenced with NACE MR0103 for refinery service.

Hardness ControlQualification calls for a controlled maximum hardness/yield rather than the full AMS 5663 range.

Heat Treatment RecordEvery qualified lot is traceable to a documented solution-anneal and age cycle.

Third-Party WitnessAvailable on request for critical wellhead and Christmas-tree bolting packages.

12 · Surface Options

Inconel Alloy 718 Hex Bolts Finish & Coating Options

Marine buyers in Africa and the Gulf often add surface finishes for extra protection or galling control.

Bright / Self-Colour

Passivated

Bright Zinc Plated (BZP)

Hot Dip Galvanised

Zinc-Nickel Plated

Dacromet Coated

Black Oxide

Geomet Coated

Alloy 718 Bolts Exporter In India To Rotterdam & The Netherlands

Container-ready fastener pricing for European buyers within 48 hours of your enquiry.

Request Export Quote

13 · Clamp Force

Inconel 718 Threaded Rod Proof Load & Clamp Force Reference

Proof load is the maximum load without permanent set—the baseline for all torque and joint calculations.

Proof Load BasisTypically taken as roughly 90% of the minimum 0.2% yield strength for the supplied condition.

Stress AreaCalculated from the bolt's tensile stress area per ASME B1.1 / ISO 898-1 thread tables.

Working PreloadDesign engineers commonly target 65–75% of proof load for a reusable joint.

Size-Specific FiguresExact proof load and clamp force per size are issued with your RFQ, not published as a generic table.

14 · Industries

UNS N07718 Fastener Applications

We are the preferred Inconel 718 Fasteners Manufacturer in India, delivering unmatched quality with fast dispatch.

Aerospace & Gas Turbines

Oil & Gas / Sour Wellhead

Marine & Shipbuilding

Power & Turbo-Charger Assemblies

Chemical Processing

Food & Dairy Equipment

Textile Machinery

Cryogenic Storage

15 · Turnaround

Inconel 718 Fastener Delivery Timeline

Once PO and payment are confirmed, your Inconel 718 fasteners ship from Mumbai. Choose your transport mode below.

Ready-Stock Bolts & Studs

Confirmed orders leave our works within 3 working days

Container & LCL Sea Freight

Most economical for bulk fastener lots, 10–30 days port to port

Express Air Freight

For shutdown-critical bolt shortages, 4–6 days door to door

Country-Wise ETA

Tell us your destination and we confirm a firm delivery date

Not Sure Which Inconel 718 Fastener Fits Your Joint?

Share your drawing or duty condition - we recommend the right form, thread and condition.

Talk to Our Engineer

16 · Quality

Nickel 718 Heavy Hex Nuts Testing & Certification

Each of these test is available on request and recorded on your mill test certificate.

PMI Testing

Proof Load Test

Tensile & Yield Test

Hardness Test

MTC 3.1 / 3.2

Chemical Analysis

Dye Penetrant

Third-Party Inspection

Heat & Lot Traceability

Complete Test Certificates

17 · Pricing

Inconel 718 Fasteners Price Factors

Four variables move the per-piece or per-kg price most - share yours for an accurate quote.

LME Nickel RateBase metal cost tracks the daily nickel index.

Size & LengthLarger diameter and longer studs raise raw bar weight.

Condition & FinishAged (AMS 5663) costs more than annealed; coatings add a step.

Testing LevelProof load, NACE qualification or third-party witness add to the invoice.

ASTM B637 UNS N07718 Supplier In Chennai, NACE MR0175 Compliant

Sour-service qualified lots dispatched with full traceability to your Chennai port agent.

Get Supplier Quote

18 · FAQs

Alloy 718 Fastener FAQs

Quick answers to the questions buyers ask us most before placing an order.

What is the standard price basis for Inconel 718 Hex Nuts?

Pricing depends on daily nickel rates, size, condition (annealed/aged), and testing—share your spec sheet for a firm quote.

What is the equivalent grade for UNS N07718 Bolt?

UNS N07718 (US) matches DIN 2.4668 (EU), JIS NCF718 (Japan), and BS NA51 (UK)—all sharing identical base chemistry.

Do you supply Inconel 718 Bolts to Africa and the Middle East?

Yes - we ship as manufacturer and stockholder to ports across the GCC, Africa and the Americas with full export documentation.

What torque should I apply to an Inconel Alloy 718 Hex Bolts?

Torque is size, class and lubrication dependent - we calculate it from the bolt's proof load and share a torque chart with your quotation.

Are Inconel 718 Nuts suitable for sour gas service?

Yes, when supplied to a controlled yield strength and qualified per NACE MR0175 / ISO 15156 - confirm your required hardness cap when ordering.

Inconel 718 Fasteners Quick Overview