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Inconel Fasteners

About Inconel Fasteners

Inconel is a family superalloys whose basic chemical composition consists of nickel and chromium. Inconel grade alloys have an austenite microstructure.One of the best features of the Inconel Socket Head Cap Screws are its superior resistance to oxidation corrosion. On account of a high content of chromium in the Inconel alloy, there is a passivate oxide layer formed on the surface of these fittings.


  • ☆ Chemical Industries
  • ☆ Petrochemical industries
  • ☆ Oil and Gas Industry
  • ☆ Building & Construction
  • ☆ Marine industry
  • ☆ Defense & Aerospace
  • ☆ Automobile Industry

Inconel Fasteners Specification

Material Inconel Alloy Fasteners
Inconel Fasteners ASTM / ANSI ASTM B166 / ASME SB166
Grades of Inconel Fasteners
  • Alloy 625 Bolts
  • Alloy 600 Bolts
  • Alloy 718 Bolts
Size of Inconel Fasteners M02 to M160
Length of Inconel Fasteners 3 mm to 200 mm
Inconel Fasteners Threads: BSW, UNC, BSF, UNF METRIC, or as required
M3, M14, M2.5, M2, M12, M5, M6, M4, M20, M16, M30, M24, M36, M8, M10 etc.
Inconel Fasteners Standard:

ANSI – American National Standards Institute

  • ASME B18.5
  • ANSI B 28.2.4 1M
  • Stud Bolt length are defined in ASME B16.5 standard
  • ANSI B 18.2.4 2M
  • Hex nuts are defined in ASME B18.2.2

DIN: DIN 931, DIN 970, 934 DIN DIN 933

UTS – Unified Thread Standard : NPTF, UNS, NPT, UNF, UNC, UNEF

ISO – International Organization for Standardization : ISO 4033 ,ISO 4032, JIS standards

Widely Use Inconel Bolts Types Inconel Hex Head Bolt, Hex Bolt, Square Bolt, Eye Bolt, T Bolt, U Bolt, Lag Bolt, Counter sunk Bolt etc.
Widely Use Inconel Nut Types Inconel Coupling Nut, Hex Head Nut, Wing Nut, Square Nut, Panel Nut, T Nut, Acorn Nuts, Dome Nut, Eye Nut, Lock Nut etc.
Widely Use Inconel Screw Types Inconel Threaded Screw, Hex Head Screw, Socket Head Screw, Socket Set Screw, Blind Rivet, Concrete Screw, Shoulder Screw, Anchor Screw, Panel Screw, Machine Screw etc.
Widely Use Inconel Washer Types Inconel Lock Washer, Machine Washers, Star Washers, Sealing Washer, Split Washer etc.
Widely Use Inconel Studs Types Inconel Double Ended Studs, Threaded Tod, Tie Bars, Tie Rodsetc.
Scope of Manufacture
  • CNC Machined , Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
  • Hot Forged , Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg
  • ASME B18.16.6 Prevailing Torque Locknuts, ASME B18.13 Screw and Washer, ASME B18.18 Fasteners
  • Inconel Fasteners Standard : ANSI / ASME B18.2.1, B18.3, B18.6.3, B18.6.7M, B1.1, B16.47, B18.2.2, B18.22.1
Inconel Fasteners In Form of: Square, Round, Threading as per Gauge,Round Etc.
Test Certificate of Inconel Bolting : EN 10204 / 3.1
Finishing of Inconel Fasteners: Zinc (yellow, white, blue, black), black oxide,
Dacroment, Geometry, nickel plated, anodizing, plated zinc-nickel, Stainless steel: Passivated
Bright Zinc Plated (BZP), Self-Colour, Hot Dip Galvanised (HDG), Stainless Steel, Sherardized,Mechanically Applied coating and some special one like DACROMET
Inconel Fasteners Production process hot forging M24-M100, M2-M24: Cold Froging
for Customized connecting element machining and CNC
Inconel bolts Head drive: Six-Lobe, Phillips/Slot, Slotted, Phillips etc
Origin and service-region: European
Origin of are Western European. However projects with eastern origin are possible on request.
Surface Coating of Inconel Fasteners materials:
  • Xylon Fasteners
  • Cadmium Fasteners
  • Teflon Fasteners
  • Hot Dipped Galvanizing Fasteners
  • Phosphate Fasteners
  • Zinc Fasteners
  • Ptfe Coated Fasteners
  • All surface finishes can be supplied, including Nickel, Geomet , Zinc, Dacromet, Galvanised, Electroless Sherardized,& PTFE.
Packing of Inconel Fasteners: In Bulk: pallet, Canton, Small Carton / Boxs / Pallet, or customer request
Specialized manufacturer of Inconel High Tensile Fasteners, Bolts
Inconel Fasteners Test Certificates
  • Third Party Inspection Report, etc
  • Raw Materials Certificate
  • EN 10204/3.1B
  • 100% Radiography Test Report

ANSI / ASME Standards for Fasteners

B18.1.1 Small Solid Rivets B18.8.1 Clevis Pins and Cotter Pins
B18.1.2 Large Rivets B18.8.2 Taper Pins, Dowel Pins, Straight Pins, Grooved Pins and Spring Pins
B18.2.1 Square and Hex Bolts and Screws B18.9 Plow Bolts
B18.2.2 Square and Hex Nuts B18.10 Track Bolts and Nuts
B18.2.6 Fasteners for use in Structural Applications B18.11 Miniature Screws
B18.3 Socket Cap, Shoulder and Set Screws B18.13 Screw and Washer Assemblies (Sems)
B18.5 Round Head Bolts B18.15 Forged Eyebolts
B18.6.2 Slotted Head Cap Screws, Square Head Set Screws, and Slotted Headless Set Screws B18.17 Wing Nuts, Thumb Screws and Wing Screws
B18.6.3 Machine Screws and Machine Screw Nuts B18.21.1 Lock Washers
B18.6.4 Thread Forming and Thread Cutting Tapping Screws and Metallic Drive Screws B18.22.1 Plain Washers
B18.7 General Purpose Semi- Tubular Rivets, Full Tubular Rivets, Split Rivets and Rivet Caps B18.23.1 Beveled Washers


Equivalent Grades of Inconel Fasteners

  1. UNS
  1. ASTM
  1. EURO
  1. ALLOY
  1. N06600
  1. B166
  1. 2.4816
  1. 600
  1. N06601
  1. B166
  1. 2.4627
  1. 601
  1. N06625
  1. B446
  1. 2.4856
  1. 625
  1. N07718
  1. B637
  1. 1.4668
  1. 718
  1. N07750
  1. B637
  1. 2.4669
  1. 750
  1. N08800
  1. B408
  1. 1.4876
  1. 800
  1. N08825
  1. B425
  1. 2.4858
  1. 825
  1. N08925
  1. B805
  1. 1.4529
  1. 925

Bolt Types

Nuts Types


Washer Type