A286 Fasteners

A286 Studs

A286 (1.4980) Studs, also known as Alloy 660 Studs are stainless steel alloy which contains iron, nickel and chromium. A286 Studs are known for their high strength, creep resistance and oxidation resistance at elevated temperatures once age hardened. As a result, A286 Studs provide high levels of strength from room temperature up to about 1300°F (700°C).
  • A286 Studs
  • A286 Studs
  • A286 Studs
  • A286 Studs
  • A286 Studs
  • A286 Studs
  • A286 Studs

RAYCHIN SPECIALTY METALS FASTENERS: BOLTS, NUTS, SCREWS, WASHERS, STUDS, THREADED RODS, U-BOLT, J-BOLTS

STANDARD AND CUSTOMIZED, SMALL BATCH AND LARGE BATCH, IMPERIAL AND METRIC

  • A286 / Alloy 660 for excellent high temperature oxidation resistance

  • Excellent high temperature oxidation resistance to 1300°F / 700°C

  • Maintains high strength at elevated temperatures

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A286 Studs


A286 (1.4980) Studs, also known as Alloy 660 Studs are stainless steel alloy which contains iron, nickel and chromium. A286 Studs are known for their high strength, creep resistance and oxidation resistance at elevated temperatures once age hardened.  As a result, A286 Studs provide high levels of strength from room temperature up to about 1300°F (700°C).

A286 Studs are also mildly corrosion resistant. While they should not be used for strong acid environments, they provide excellent oxidation resistance up to 1500°F (815°C) in conditions that would typically be found in high temperature exhaust streams. Because A286 Studs are used in high temperature applications where performance is critical, we can provide fasteners to ASTM A453 Grade 660 in order to ensure accurate standards for tensile and stress rupture properties.


  • A286 / Alloy 660 for excellent high temperature oxidation resistance

  • Excellent high temperature oxidation resistance to 1300°F / 700°C

  • Maintains high strength at elevated temperatures

  • Specs & heat treatments

  • A286 Chemistry

  • ASTM A453 Grade 660 and ASTM F2281

  • A286 FAQ of the Week

  • A286 Datasheet


Applications


Because of the properties of Alloy 660 / A286, these fasteners are often found in high temperature engine, manifold, exhaust and turbine applications as well as off-shore oil & gas applications. In addition, A286 / Alloy 660 is also non-magnetic and finds a niche in non-magnetic cryogenic equipment.


Resources: A286 Torque Specs


A286 Studs Types: Studs, Threaded Rods


Custom Availability


  • Diameter sizes:  Standard #00 – 4” in diameter / Metric M1.2 – M100

  • Threads: UNC, UNF, UNJ, UNR, Rolled,Cut

  • Minimum Volume – Typically 10pcs, depending on size and stock

  • Custom to print


A286 Fastener Styles


A286 Screws

12 Point Screws

Button Head Cap Screws

Flat Head Screws

Hex Head Cap Screws

Pan Head Screws

Security Screws

Set Screws

Socket Head Cap Screws

Vented Screws

•  DIN 603 / ISO 8677

•  DIN 912 / ISO 4762

•  DIN 913 / ISO 4026

•  DIN 914 / ISO 4027

•  DIN 915 / ISO 4028

•  DIN 916 / ISO 4029

•  DIN 921

•  DIN 931 / ISO 4014

•  DIN 933 / ISO 4017

•  DIN 961 / ISO 8676

•  DIN 965 / ISO 7046

•  DIN 966 / ISO 7047

•  DIN 7991 / ISO 10642

•  DIN 7380 / ISO 7380

•  DIN 84 / ISO 1207

•  DIN 85 / ISO 1580

•  DIN 34822

•  DIN 34821

•  DIN 7504 / ISO 15480

•  DIN 7984

•  DIN 963 / ISO 2009

A286 Bolts

Hex Head Bolts

Shoulder Bolts

Wedge Anchor Bolts

•  DIN 931
•  DIN 933
•  ISO 4014
•  ISO 4017
•  ISO 7370
A286 Nuts

Hex Nuts

Lock Nuts

•  DIN 439 / ISO 4035
•  DIN 934 / ISO 4032
•  DIN 985 / ISO 7040
•  DIN 986
•  DIN 980 / ISO 7042 / ISO 19513
•  DIN 6923 / ISO 4161
A286 Studs/Rod

Studs

Threaded Rod

Weld Studs

•  DIN 975
•  DIN 976
A286 Washers

Flat Washers

Lock Washer

•  DIN 125 / ISO 7089 / ISO 7090
•  DIN 126 / ISO 7091
•  DIN 127 / ISO 7090
•  DIN 9021 / ISO 7093
A286 Hose ClampsMedium Duty Hose Clamps


A286 Screws

12 Point Screws

A286 12 point screws allow for higher torque to be applied than a socket head cap screw or head head bolt, however they are be less economical due to the complex head design. Available in 1/4" or larger sizes.•  IFI-115
•  MIL SPEC
•  DIN 34822
•  DIN 34821

Button Head Cap Screws

A286 button head screws offer a wide clamping area and low profile. They are best for fastening material that is too thin to counter bore.• ASME B18.3
• ASME 18.3.4M
• DIN 7380 / ISO 7380

Flat Head Screws

A286 flat head screws are most commonly offered in an 82° countersink angle, but can be customized to other angles from 60° -120° and are designed to be flush with the surface.  Available in slotted and socket drivers. Phillips, 6-lobe, torx and tamperproof drivers in A286 flat head screws can be made require special manufacturing.•  ASME B18.3
•  ASME B18.3.6
•  DIN 963 / ISO 2009
•  DIN 965 / ISO 7046
•  DIN 7991 / ISO 10642

Hex Head Cap Screws

A286 hex head cap screws offer the added washer face to the bolt head which is lacking on a hex bolt and tighter dimensional tolerances. Ideal for a high clamping force applications with ease of access. Generally availabe in #2 - 1/2" sizes and metric sizes.• ASME B18.6.3
• DIN 931 / ISO 4014
• DIN 933 / ISO 4017
• DIN 961 / ISO 8676

Pan Head Screws

A286 pan head screws offer a rounded top are best used for small diameter faster needs. Offered in slotted and they are ideal for low torque applications.• ASME B18.6.3
• DIN 7985
• DIN 921
• DIN 85 / ISO 1580
• DIN 84 / ISO 1207
  (cheese head)
• DIN 966 / ISO 7047
  (raised counter sunk)

Security Screws

Unique driver designs offer these A286 screws resistance to unwanted tampering or removal due to the fact that they cannot be removed using an ordinary driver. A286 security screws are available in several different drive styles, as well as custom per print.

Set Screws

A286 set screws are available in cup, cone, flat, dog and half-dog points. Set screws have no head and are equiped with a socket or slotted driver at one end.• ASME B18.3
• DIN 913 / ISO 4026
• DIN 914 / ISO 4027
• DIN 915 / ISO 4028
• DIN 916 / ISO 4029

Socket Head Cap Screws

A286 socket head cap screws are ideal for limited access situations where there is little clearance around the screws. They offer a safe, reliable and economic solution.• ASMET B18.3
• DIN 912 / ISO 4762
• DIN 7984

Vented Screws

A286 vented screws are best for vacuum environments because the hole drilled through its axis (from head through threads) allow gases and other contaminents to vent. A286 vented screws are available in any style.


A286 Bolts

Hex Head Bolts

A286 hex bolts are similar to hex head cap screws but without the added washer face. They are ideal for high clamping force applications with ease access.• ASME B18.2.1
• DIN 931 / ISO 4014
• DIN 933 / ISO 4017

Shoulder Bolts

A286 shoulder bolts are made up of a head, shoulder and threaded segment. The smooth shoulder section allows for rotating parts. Typically available with socket drivers.• ASME
• DIN 7379 / ISO 7379
• ISO 7370

Wedge Anchor Bolts

A286 wedge anchor bolts offer a safe secure fastening solution for attaching equipment and other materials to concrete in corrosive environments.


A286 Nuts

Hex Nuts

A286 hex nuts are available in a variety of styles including finished hex nuts, jam nuts and heavy hex nuts.• ASME B18.16.3
• ASME B18.2.2
• DIN 439 / ISO 4035
• DIN 934 / ISO 4032
• DIN 986

Lock Nuts

A286 lock nuts are available in all metal and polymer insert styles. All-metal lock provide even load distribution and can be used at high temperatures. Polymer  insert styles are more economical and are best for temperatures under than 350°F.• ASME B18.16.3M
• DIN 980 / ISO 7042 / 
   ISO 19513
• DIN 6923 / ISO 4161
• DIN 985 / ISO 10511 /
  ISO 7040


A286 Studs & Threaded Rods

Studs

A286 studs are fully threaded or partially threaded and made to custom lengths.• ASME B18.31.2
• DIN 976
Threaded RodA286 threaded rod or all thread are available in lengths greater than 1 foot. Minimum order quantity is a total of 6 feet of length.• ASME B1.1
• DIN 975

Weld Studs

A286 weld studs are available in both arc or capacitor discharge (CD) styles. Weld studs provide an extremely secure fastening solution when one side of the stud needs to be permanently fix to a part and the other side with the threads accessible.


A286 Washers 

Flat Washers

A286 washers are most commonly offered in SAE sizes, but also availabe in USS, oversized and custom sizes upon request.• ASME 18.21.1
• SAE / USS
• DIN 125 / ISO 7089 /
  ISO 7090
• DIN 126 / ISO 7091

Lock Washers

A286 lock washers are offered as split lock washers. Belleville spring lock washers can also be made upon request.• ASME B18.21.1
• DIN 127 / ISO 7090
• DIN 6796 /  ISO 10690


PropertyContinuous OperationShort Term / Intermittent Use
High Strength Retention-320°F up to 1000°F1300 -1500°F
Oxidation Resistance1500°F1800°F


ASTM A453 Grade 660


Material specification ASTM A453 Grade 660 applies to bolts, studs, nuts and other fasteners. It ensures fasteners meet strength standards for use in high temperature bolting applications. ASTM A453 Grade 660 is classified into 4 property classes / heat treatments: A, B, C & D, each designated with different tensile and stress rupture properties. The most common of the ASTM 453 classes are class A or D. The grades A, B and C all have the same minimum tensile strength and minimum yield strength of 130ksi and 85ksi respectively. However grade D has a significantly better yield with a min tensile of 130ksi and a min yield of 105ksi.


Additional A286 / Alloy 660 Specifications, Cold Working & Heat Treatments (1.4980)


AMS A286 / Alloy 660 Heat Treatments

By AMS numbers, the most common for A286 / Alloy 660 is AMS 5737 (same as Grade A) and then AMS 5732 (same as Grade B).

A286 / Alloy 660 Cold Worked Fasteners

For additional strength, A286 could be aged and cold worked to achieve a min ultimate tensile strength of 160ksi upon request.


Additional Specifications


UNS S66286, ASTM A453, AMS 5525, AMS 5726, AMS 5732, AMS 5737, AMS 5804, EN 1.4980, GE B50T1181, GE B50T12, GE B50T81, Werkstoff 1.4980, ASTM F2281


A286 / Alloy 660 Chemistry


A-286FeNiCrTiMnMoSiCoVaAlCPSB
Min%-24.013.51.9
1.0

0.1



0.003
Max%Bal27.016.02.352.01.51.01.00.50.350.080.0250.0250.01


Mechanical Properties


Material Condition (Grades A-D per ASTM A453)Ultimate Tensile (ksi) minYield Strength at0.2% Offset (ksi) minElongation %RA%min
A130851518
B130851518
C130851518
D1301051518
Cold Worked1601201218


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