A286 Fasteners, Bolts & Nuts – UNS S66286 / Alloy 660 for High-Temperature Service
Primary Focus Keyword: A286 Fasteners
Secondary Keywords:
A286 Fasteners Supplier India, A286 Bolts, A286 Nuts, A286 Studs, A286 Fastener Material, UNS S66286 Fasteners, UNS S66286 Bolts, Alloy 660 Fasteners, Alloy 660 Bolts, A286 High Temperature Fasteners, A286 Stainless Steel Fasteners, A286 Grade 660 Fasteners, A286 Aerospace Fasteners, A286 Turbocharger Bolts, A286 Exhaust Bolts, A286 High Strength Fasteners
SEO Title:
A286 Fasteners, Bolts & Nuts | UNS S66286 Alloy 660
Meta Description:
Source A286 fasteners, bolts, nuts and studs in UNS S66286 / Alloy 660 for high-temperature aerospace, automotive, energy and industrial applications.
URL Slug:a286-fasteners-bolts-nuts-uns-s66286
Table of Contents
- What Are A286 Fasteners?
- A286, Alloy 660 and UNS S66286 Designations
- Why A286 Is Used for High-Temperature Fasteners
- A286 Bolts and Studs
- A286 Nuts and High-Temperature Fastener Assemblies
- A286 Fastener Applications
- A286 Fastener Specifications
- ASTM A453 Grade 660 and A286
- A286 Fastener Material Selection
- A286 Fastener Procurement Guide
- Frequently Asked Questions
- Request an A286 Fastener Quote
What Are A286 Fasteners?
A286 Fasteners are high-strength fasteners manufactured from A286 alloy, an iron-base austenitic precipitation-hardening alloy used for demanding mechanical and elevated-temperature applications.
A286 is also identified as:
- A286
- A-286
- Alloy A286
- Alloy 660
- Grade 660
- AISI 660
- UNS S66286
- W.Nr. 1.4980
Carpenter Technology identifies A-286 as UNS S66286 and states that the alloy is designed for high strength and good corrosion resistance at temperatures up to approximately 1300°F (704°C).
This makes A286 relevant to fasteners exposed to elevated temperatures, mechanical loading and demanding operating environments.
A286, Alloy 660 and UNS S66286 Designations
Buyers may encounter different names when searching for A286 fasteners.
| Search / Material Name | Designation |
|---|---|
| A286 Fasteners | Common product term |
| A-286 Fasteners | Alternate spelling |
| Alloy A286 Fasteners | Alloy designation |
| Alloy 660 Fasteners | Alternate designation |
| Grade 660 Fasteners | Grade designation |
| AISI 660 Fasteners | AISI designation |
| UNS S66286 Fasteners | UNS designation |
| W.Nr. 1.4980 | Werkstoff designation |
Carpenter Technology’s technical data identifies A-286 as UNS S66286, AISI No. 660 and DIN No. 1.4980.
For procurement, however, the buyer should still specify the complete applicable standard, product form, dimensions and required condition rather than relying only on the alloy name.
Why A286 Is Used for High-Temperature Fasteners
A fastener is not simply a piece of hardware. In high-temperature equipment, it must maintain the required mechanical performance and joint integrity under the expected service conditions.
A286 is attractive for these applications because it combines:
High Strength
A286 can be strengthened through precipitation-hardening heat treatment.
Elevated-Temperature Capability
Carpenter Technology identifies A-286 for applications requiring high strength and corrosion resistance at temperatures up to approximately 1300°F / 704°C.
Corrosion Resistance
The alloy provides useful corrosion resistance in demanding environments, supporting its use in aerospace, energy, transportation and industrial applications.
Suitable High-Temperature Fastener Performance
Carpenter Technology specifically identifies A-286 as an alloy used for a wide variety of high-temperature bolting applications.
A286 Bolts and Studs
A286 Bolts and A286 Studs are used when fastening systems require high strength and elevated-temperature capability.
Potential product types include:
- Hex bolts
- Heavy hex bolts
- Stud bolts
- Threaded studs
- Machine bolts
- Special-purpose bolts
- Engine bolts
- Exhaust bolts
- Turbocharger bolts
- Custom machined fasteners
The appropriate product configuration depends on the joint design, dimensions, load, temperature and applicable specification.
For high-temperature automotive applications, Carpenter Technology specifically discusses A-286 for exhaust manifold bolts, studs, turbocharger bolts and studs, and other exhaust-system fasteners.
A286 Nuts and High-Temperature Fastener Assemblies
A high-temperature bolted joint generally requires more than just selecting a high-strength bolt.
The complete assembly may include:
- A286 bolts
- A286 nuts
- A286 studs
- Washers
- Threaded components
- Mating components
The material combination, thread design, preload, operating temperature and thermal expansion characteristics should be evaluated together.
For critical applications, buyers should clearly specify whether they require:
A286 Bolts only
or
Complete A286 Fastener Sets
including nuts and associated hardware.
A286 Fastener Applications
A286 fasteners are relevant to several industrial sectors.
Aerospace Fasteners
A286 originated as an important aerospace alloy and continues to be associated with demanding aerospace applications.
Potential uses include:
- High-temperature bolts
- Studs
- Engine hardware
- Turbine-related fasteners
- Specialized aerospace fastening systems
Carpenter Technology lists aerospace among the major application sectors for A-286.
Automotive Exhaust Fasteners
A particularly important application is high-temperature automotive fastening.
A286 has been used for:
- Exhaust manifold bolts
- Exhaust manifold studs
- Turbocharger bolts
- Turbocharger studs
- EGR-related fasteners
- Catalytic-converter fasteners
- Heavy-truck exhaust bolts
- Heavy-truck manifold studs
Carpenter Technology specifically identifies these types of fasteners in its technical discussion of high-temperature automotive exhaust applications.
Energy Equipment
A286 fasteners can be considered for selected energy equipment where elevated-temperature strength and corrosion resistance are required.
Potential applications include:
- Power-generation equipment
- Turbomachinery
- High-temperature equipment
- Industrial boilers and associated hardware
- Specialized mechanical assemblies
The actual application should be checked against the applicable engineering specification.
Industrial Machinery
A286 fasteners can be used in industrial machinery where conventional fastener materials may not provide the required high-temperature performance.
Possible requirements include:
- High-strength bolts
- Stud assemblies
- High-temperature nuts
- Precision threaded components
- Special-purpose fasteners
A286 Fastener Specifications
A professional A286 fastener enquiry should include the complete technical requirement.
| Requirement | Information to Provide |
|---|---|
| Material | A286 / Alloy 660 |
| UNS | S66286 |
| Product | Bolt / Nut / Stud / Washer / Special Fastener |
| Diameter | Required size |
| Thread | Metric / UNC / UNF / other |
| Length | Required length |
| Specification | Applicable ASTM / AMS / other |
| Grade | Applicable Grade / Class |
| Condition | Required material condition |
| Finish | Required finish/coating |
| Quantity | Pieces / kg |
| Testing | Required testing |
| Certification | Material / test certificate |
| Application | End-use application |
This information helps prevent incorrect material or specification selection.
ASTM A453 Grade 660 and A286
One of the most important standards to understand when researching A286 high-temperature fasteners is ASTM A453/A453M.
ASTM describes A453/A453M as a specification covering high-temperature bolting materials with expansion coefficients comparable to austenitic stainless steels. The current ASTM listing specifically includes Grade 660, including Classes A, B, C and D.
Carpenter Technology also lists ASTM A453 and ASTM A638 among the applicable specifications for A-286.
Important procurement point
Do not assume that writing:
“A286 bolt required”
is enough for a critical industrial purchase.
Instead, specify:
A286 / UNS S66286 + applicable ASTM/AMS specification + size + thread + length + required condition + quantity.
The applicable standard and class should be confirmed according to the actual engineering requirement.
A286 Fastener Material Selection
Before purchasing A286 Fasteners, consider the following:
Operating Temperature
Determine the actual continuous and peak service temperature.
Mechanical Load
Evaluate:
- Tensile load
- Shear load
- Fatigue
- Vibration
- Preload
- Thermal cycling
Thermal Expansion
High-temperature joints can experience significant thermal expansion and contraction.
ASTM A453 specifically addresses bolting with expansion coefficients comparable to austenitic stainless steels.
Corrosive Environment
Identify exposure to:
- Moisture
- Oxidizing environments
- Chemicals
- Exhaust gases
- Salts
- Process fluids
Thread Requirements
Specify the thread standard and dimensions clearly.
Certification
For critical applications, identify whether the requirement includes:
- Material Test Certificate
- Chemical analysis
- Mechanical testing
- Dimensional inspection
- PMI
- Third-party inspection
- Traceability
A286 Fastener Procurement Guide
When contacting an A286 Fasteners Supplier India, provide as much information as possible.
Example enquiry
Material: A286 / Alloy 660
UNS: S66286
Product: Stud Bolts
Diameter: ______
Length: ______
Thread: ______
Specification: ______
Class/Grade: ______
Condition: ______
Quantity: ______ pieces
Testing: ______
Certificate: ______
Application: High-temperature industrial equipment
Delivery Location: ______
This format allows the supplier to understand the requirement and prepare a more accurate quotation.
A286 Fasteners for High-Temperature Industrial Requirements
A286 is particularly interesting for applications where fasteners must operate at temperatures significantly above ordinary carbon-steel fastener service conditions.
Carpenter Technology notes that A-286 is used for high-temperature bolting applications and identifies a service range extending toward 1300°F / 700°C depending on application and requirements.
For turbocharger and exhaust applications, Carpenter also identifies A-286 as a material used for fasteners exposed to severe heat.
The exact suitability should always be determined from the component design, specification and service environment.
Frequently Asked Questions
What are A286 fasteners?
A286 fasteners are bolts, nuts, studs and other threaded components manufactured from A286 / UNS S66286 alloy for demanding applications.
What is the UNS number of A286 fasteners?
The UNS designation for A286 is UNS S66286.
What is Alloy 660 fastener material?
Alloy 660 is a designation associated with A286. A-286 is identified as AISI No. 660 and UNS S66286 in Carpenter Technology’s technical data.
Is A286 suitable for high-temperature bolts?
Yes. A286 is used for high-temperature bolting applications where high strength and corrosion resistance are required.
What is ASTM A453 Grade 660?
ASTM A453/A453M is a specification for high-temperature bolting materials with expansion coefficients comparable to austenitic stainless steels. The current ASTM listing includes Grade 660.
Where are A286 bolts used?
A286 bolts and studs are used in applications including aerospace, automotive exhaust systems, turbochargers, energy equipment and industrial machinery.
What affects A286 fastener price?
Pricing depends on fastener type, diameter, length, thread, quantity, specification, material condition, testing, certification, machining and market availability.
Can A286 be used for turbocharger bolts?
A286 is used for turbocharger bolts and studs in high-temperature automotive applications.
Authoritative A286 Fastener Resources
For engineers and procurement teams researching A286 / Alloy 660 / UNS S66286 fasteners, the following references are useful:
Carpenter Technology – A-286 Alloy Finder
Technical information covering UNS S66286, applications, product forms and applicable specifications.
https://www.carpentertechnology.com/alloy-finder/A-286
ASTM International – ASTM A453/A453M
Current standard information for high-temperature bolting, including Grade 660.
https://store.astm.org/a0453_a0453m-26.html
Carpenter Technology – High Temperature Alloys for Fasteners
Technical discussion of A-286 in automotive exhaust fastener applications.
https://www.carpentertechnology.com/blog/selecting-high-temperature-alloys-for-fasteners
Carpenter Technology – A-286 / 286-LNi Fastener Applications
Information on A-286 and high-temperature automotive and truck fastener applications.
https://www.carpentertechnology.com/blog/carpenter-286-lni-alloy
WordPress: Make each resource title above an actual clickable external hyperlink and keep the links DoFollow. Do not add
rel="nofollow".
Explore the A286 Information Cluster
Continue researching A286 through the related Manan Steel & Metals pages:
- A286 Round Bar Supplier India — commercial sourcing intent
- A286 Properties & Specifications — technical intent
- A286 Alloy Applications — applications intent
- A286 Round Bar Price India — upcoming buying/price intent
Recommended internal anchors
Link:
A286 Round Bar Supplier India → Blog 1
A286 Properties and Specifications → Blog 2
A286 Alloy Applications → Blog 3
A286 Round Bar Price India → Blog 5
This creates a clear internal topical structure without making all five pages compete for exactly the same keyword.
Request A286 Fasteners from Manan Steel & Metals
Looking for A286 Fasteners, A286 Bolts, A286 Nuts or UNS S66286 Studs for an industrial requirement?
Send your:
- Material designation
- UNS number
- Fastener type
- Diameter
- Length
- Thread
- Specification
- Grade/Class
- Quantity
- Testing requirements
- Certification requirements
- Delivery location
Manan Steel & Metals
Shop No. 2, Hira Building,
97 Khetwadi Main Road (Nanubhai Desai Road),
Girgaon, Mumbai – 400004, Maharashtra, India
Phone: 7977369869
Email: manansteel@gmail.com
Website: https://www.manansteel.com/
Send your complete A286 / Alloy 660 / UNS S66286 fastener requirement for an industrial quotation.
SEO Image Details
Featured Image Concept:
Premium close-up of A286 high-temperature bolts, studs and nuts arranged with A286 round bar in an engineering environment. Add a clean technical overlay:
“A286 Fasteners | UNS S66286 | Alloy 660”
Image File Name:a286-fasteners-uns-s66286-alloy-660.jpg
ALT Text:A286 fasteners UNS S66286 Alloy 660 bolts and nuts
Image Title:A286 Fasteners UNS S66286 Alloy 660
Caption:A286 / Alloy 660 / UNS S66286 fasteners for high-temperature industrial applications.