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Incoloy A-286 Hex nut UNS S66286 square nut 1.4980 jam nut heavy hex nut

Specializing in High-Performance A286 & A453 Gr660 Fastener Nuts
When superior strength, corrosion resistance, and high-temperature performance are paramount, standard fasteners simply won’t suffice. Our company specializes in manufacturing a comprehensive range of premium hexagonal nuts using high-grade materials like A286Incoloy A286A453 Gr660, and 1.4980 stainless steel alloys. These materials are engineered for the most demanding applications across diverse industries, including aerospace, petrochemical, and heavy construction.

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1. EN‌: 1.4980 / X5NiCrTi26-15  UNS‌: S66286

  • China‌: GH2132 (GB/T 14992)
  • Germany‌: 1.4944 / 1.4980
  • Common Trade Names‌: A286, Haynes® 901, Alloy 901 ‌

2. Material Properties of Incoloy A-286‌ combines exceptional high-temperature strength with corrosion resistance:   We are high-Temperature Incoloy A286 Nut manufacturer,let’s check the Chemical composition:

  • Ni: 24–27%, Cr: 13.5–16%, Fe: 50–55%, Mo: 1.0–1.5%, Ti: 1.9–2.3%, Al: 0.15–0.3% ‌15.
  • Mechanical Properties‌:
  • Tensile Strength: 1034 MPa
  • Yield Strength: 689 MPa
  • Elongation: 12%
  • Hardness: 200–350 HB ‌12.
  • Key Advantages‌ of  A453 Gr660 Class A/B/C/D Fastener Nuts
  • ‌High-Temperature Performance‌ of ASTM A453 Gr 660 Finished Hex Nut
  • Retains strength up to ‌650°C‌ with excellent oxidation resistance at ‌760°C‌ ‌
  • ‌Creep & Fatigue Resistance‌ of 1.4980 Stainless Steel Standard Hex Nut : Ideal for rotating components in gas turbines and nuclear reactors ‌
  • ‌Weldability & Machinability‌ of Incoloy A286 Internally Threaded Fastener  :compatible with TIG and MIG welding using filler metals like Inconel 625 ‌

‌4. Applications of Incoloy A-286 Nuts‌-bolts-screws-fasteners

  • Aerospace‌: such as Turbine disks, rotor blades, and jet engine fasteners ‌, you could see corrosion Resistant A286 Fasteners are useful for Aerospace
  • Oil & Gas‌: Subsea wellheads, sour gas processing equipment, and hydraulic fracturing systems ‌also need  A453 Grade 660 Heavy Duty Hex Nut
  • Energy Generation‌: Large Hex Nut 1.4980 could use for nuuclear reactor internals, geothermal plants, and gas turbine blades ‌
  • Industrial Machinery‌: High-temperature fasteners for forging presses and heat exchangers ‌
  • ‌Incoloy A286 High-Temperature Nuts, UNS S66286 Superalloy Nuts, ASTM B637 Hex Nuts
  • ‌‌Aerospace Flange Nuts, Creep-Resistant Lock Nuts, Nickel Alloy Nuts
  •  Incoloy A286 nuts for gas turbines, S66286 vs GH2132 nuts comparison, Superalloy nuts for nuclear reactors

 

Incoloy A-286 is used to manufacture critical fasteners, including:

    • Incoloy A286 fasteners
    • A286 bolts and nuts
    • Alloy A286 hex nut
    • A286 stainless steel bolts 
    • ASTM A453 Grade 660 bolts
    • UNS S66286 fasteners
    • 1.4980 hex bolts (European standard equivalent)
    • High temperature A286 bolts
    • A286 aerospace fasteners
    • A286 stud bolts and nuts
    • Corrosion resistant A286 fasteners

We manufacture precision-engineered nuts and Incoloy A286 Hexagonal Fasteners in various styles to meet your specific project requirements. Each product is available in the specified high-performance materials.
  • DIN 934 1.4980 Stainless Steel Nuts Hex Nut:  Also known as a hexagonal nut, standard hex nut, or finished hex nut, this is the most common and versatile six-sided fastener used across numerous general-purpose applications.
  • A453 Grade 660 Heavy Hex Nut: Designed for high-load applications and use with structural bolts, these Incoloy A286 nuts are thicker and have a larger width across the flats than standard 1.4980 hex nuts, providing enhanced clamping force and superior tensile strength. Synonyms include heavy duty hex nut, large hex nut, and oversized hex nut.
  • Hexagon Nut ASME B18.2.2 A453 Gr660 Heavy type : general term for any six-sided nut and internally threaded fastener, encompassing both standard and heavy patterns, essential for securing components in machinery and structural projects.
  • Stainless Steel Nut: We offer a variety of stainless steel nuts, specifically manufactured from superalloys like A286, known for their exceptional resistance to corrosion and high-temperature environments.

 

Final Note‌: Incoloy A-286 bolts nuts fasteners and High-Strength 105 ksi Yield A453 Grade 660 Nuts could deliver unmatched durability in extreme temperatures and corrosive environments. Ensure compliance with ASTM, AMS, or ASME standards for optimal performance ‌24. For custom specifications or bulk orders, contact us today!

 

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In demanding industrial environments, the integrity of a structure often depends on its smallest components: the fasteners. 2205 Duplex Stainless Steel Bolts have emerged as the “workhorse” of the industry, offering a superior alternative to standard grades like 316. Understanding why we need these high-performance Alloy 2205 Bolting solutions requires looking at their unique chemistry, history, and the critical roles they play across global industries.

Manufacturing 904L bolts is significantly more difficult than manufacturing standard 304 or 316 grades. While 904L is highly ductile, its high nickel (25%) and molybdenum (4.5%) content make it extremely tough and prone to rapid work-hardening,  When welding 904L studs or components, use matching filler metals (e.g., 20 25 CuL) and avoid pre-heating to prevent hot cracking. Use Tri-Roll Thread Comparators and calibrated gauges to ensure precision, as 904L is prone to galling (seizing) during assembly if threads are not perfect.

In the demanding industrial landscape of 2026, the integrity of a project depends entirely on the fasteners used. Whether securing a jet engine component operating at extreme temperatures or erecting an offshore wind turbine, the choice of material and specification is critical for safety, longevity, and performance.
As a premier manufacturer, we specialize in high-precision fastening solutions tailored for extreme environments, featuring advanced materials like Incoloy A286.

 

Model: Could custom as client’s need
Material:Spring steel(55CrSiA、50CrVA、)
stainless steel(301、302、304、316、316L、17-7PH、15-7Mo)
Exotic alloy(GH4145、GH4169、GH2132、GH4090、30W4Cr2VA)
(Inconel X-750、Inconel 718、Nimonic90)

  • UNS‌: ‌N08028
  • EN/DIN‌: ‌4563
  • China GB‌: ‌NS142
  • Key Standards‌:
  • ASTM‌: B668 (Bar), B709 (Sheet), B829 (Forgings) ‌12
  • ASME‌: SB-668, SB-709 (High-Temperature Applications) ‌13
  • DIN‌: 1.4563 (Fasteners) ‌23

Inconel 901 High-Temperature Nuts – Superior Strength for Aerospace & Energy Sectors‌ ,Inconel 901, a ‌nickel-iron-chromium superalloy‌, is standardized under:

  • UNS‌: N09901
  • EN‌: 2.4662 / NiCr15Fe7TiAl
  • DIN‌: 1.4898
  • Common Trade Names‌: Nimonic 901, Haynes® 901, Alloy 901 ‌12.
  • UNS‌: ‌N08825
  • EN/DIN‌: ‌4858
  • China GB‌: ‌NS142
  • Key Standards‌:
  • ASTM‌: B425 (Bar), B423 (Seamless/Welded Tubes), B564 (Forgings) ‌13
  • ASME‌: SB-423, SB-425 (High-Temperature Applications) ‌16
  • BS‌: 3076 NA16 (Fasteners) ‌

Equivalent Grades of Alloy31 (UNS N08031) Alloy31, also designated as ‌UNS N08031‌, is a ‌super austenitic nickel-chromium-molybdenum alloy‌ standardized under:

  • EN‌: 1.4562
  • DIN‌: 1.4529
  • China‌: 00Cr27Ni31Mo7CuN (GB/T 20878)
  • Common Trade Names‌: Nicrofer 3127 hMo, Hastelloy® Alloy31 ‌13.
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