ASTM A490-08a

Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength

SCOPE
1.1 This specification covers two types of quenched and tempered, alloy steel, heavy hex structural bolts having a tensile strength of 150 to 173 ksi.
1.2 These bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using Specification A 325 or A 490 bolts, approved by the Research Council on Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.  
1.3 The bolts are furnished in sizes ½ to 1½in., inclusive. They are designated by type denoting chemical composition as follows:
  TypeDescription  Type 1Medium carbon alloy steel Type 2Withdrawn in 2002 Type 3Weathering steel
1.4 This specification provides that heavy hex structural bolts shall be furnished unless other dimensional requirements are specified on the purchase order.
1.5 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
1.6 For metric bolts, see Specification A 490M Classes 10.9 and 10.9.3
1.7 The following safety hazards caveat pertains only to the Test Methods portion, Section 12 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 14-Jan-2008
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM A490-08 - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
• Effective Date: 15-Jan-2008
• Replaced By: ASTM A490-08b - Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
• Effective Date: 01-Dec-2008
• Referred By: ASTM C1533-15(2022) - Standard Guide for General Design Considerations for Hot Cell Equipment
• Effective Date: 15-Jan-2008
• Referred By: ASTM F1624-12(2018) - Standard Test Method for Measurement of Hydrogen Embrittlement Threshold in Steel by the Incremental Step Loading Technique
• Effective Date: 15-Jan-2008
• Referred By: ASTM C1802-23 - Standard Specification for Design, Testing, Manufacture, Selection, and Installation of Horizontal Fabricated Metal Access Hatches for Utility, Water, and Wastewater Structures
• Effective Date: 15-Jan-2008
• Referred By: ASTM F959/F959M-17a - Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
• Effective Date: 15-Jan-2008

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
American Association State
Designation: A 490 – 08a Highway and Transportation
Officials Standard
AASHTO No.: M 253
Standard Specification for
Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum
1
Tensile Strength
This standard is issued under the fixed designation A 490; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 2. Referenced Documents
3
1.1 This specification covers two types of quenched and 2.1 ASTM Standards:
tempered, alloy steel, heavy hex structural bolts having a A 194/A 194M Specification for Carbon and Alloy Steel
tensile strength of 150 to 173 ksi. Nuts for Bolts for High Pressure or High Temperature
1.2 These bolts are intended for use in structural connec- Service, or Both
tions.These connections are covered under the requirements of A 325 Specification for Structural Bolts, Steel, Heat
the Specification for Structural Joints Using Specification Treated, 120/105 ksi Minimum Tensile Strength
A 325 or A 490 bolts, approved by the Research Council on A 354 Specification for Quenched and Tempered Alloy
Structural Connections; endorsed by the American Institute of Steel Bolts, Studs, and Other Externally Threaded Fasten-
2
Steel Construction and by the Industrial Fastener Institute. ers
1 1
1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive. A 490M Specification for High-Strength Steel Bolts,
They are designated by type denoting chemical composition as Classes10.9and10.9.3,forStructuralSteelJoints(Metric)
follows: A 563 Specification for Carbon and Alloy Steel Nuts
A 751 Test Methods, Practices, and Terminology for
Type Description
Chemical Analysis of Steel Products
Type 1 Medium carbon alloy steel
D 3951 Practice for Commercial Packaging
Type 2 Withdrawn in 2002
Type 3 Weathering steel E 384 Test Method for Microindentation Hardness of Ma-
terials
1.4 This specification provides that heavy hex structural
E 709 Guide for Magnetic Particle Testing
bolts shall be furnished unless other dimensional requirements
E 1444 Practice for Magnetic Particle Testing
are specified on the purchase order.
F 436 Specification for Hardened Steel Washers
1.5 Terms used in this specification are defined in Termi-
F 606 Test Methods for Determining the Mechanical Prop-
nology F 1789 unless otherwise defined herein.
erties of Externally and Internally Threaded Fasteners,
1.6 For metric bolts, see SpecificationA 490M Classes 10.9
Washers, Direct Tension Indicators, and Rivets
and 10.9.3
F 788/F 788M Specification for Surface Discontinuities of
1.7 The following safety hazards caveat pertains only to the
Bolts, Screws, and Studs, Inch and Metric Series
Test Methods portion, Section 12 of this specification: This
F 959 Specification for Compressible-Washer-Type Direct
standard does not purport to address all of the safety concerns,
Tension Indicators for Use with Structural Fasteners
if any, associated with its use. It is the responsibility of the user
F 1136 Specification for Zinc/Aluminum Corrosion Protec-
of this standard to establish appropriate safety and health
tive Coatings for Fasteners
practices and determine the applicability of regulatory limita-
F 1136M Specification for Zinc/Aluminum Corrosion Pro-
tions prior to use.
tective Coatings for Fasteners (Metric)
F 1470 GuideforFastenerSamplingforSpecifiedMechani-
cal Properties and Performance Inspection
1
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
Nuts, Rivets and Washers.
3
Current edition approved Jan. 15, 2008. Published February 2008. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1964. Last previous edition approved in 2008 as A 490 – 08. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
Available from American Institute of Steel Construction (AISC), One E. Standards volume information, refer to the standard’s Document Summary page on
Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org. the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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A 490 – 08a
F 1789 Terminology for F16 Mechanical Fasteners 3.2.2 Alternatively, nuts conforming to SpecificationA 194/
G 101 Guide for Estimating the Atmospheric Corrosion A 194M Gr. 2H plain (uncoated) are considered a s
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
American Association State
Designation:A 490–08 Designation: A 490 – 08a Highway and Transportation
Officials Standard
AASHTO No.: M 253
Standard Specification for
Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum
1
Tensile Strength
This standard is issued under the fixed designation A 490; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification covers two types of quenched and tempered, alloy steel, heavy hex structural bolts having a tensile
strength of 150 to 173 ksi.
1.2 These bolts are intended for use in structural connections. These connections are covered under the requirements of the
Specification for Structural Joints Using Specification A 325 or A 490 bolts, approved by the Research Council on Structural
2
Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
1 1
1.3 The bolts are furnished in sizes ⁄2 to 1 ⁄2 in., inclusive. They are designated by type denoting chemical composition as
follows:
Type Description
Type 1 Medium carbon alloy steel
Type 2 Withdrawn in 2002
Type 3 Weathering steel
1.4 This specification provides that heavy hex structural bolts shall be furnished unless other dimensional requirements are
specified on the purchase order.
1.5 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
1.6 For metric bolts, see Specification A 490M Classes 10.9 and 10.9.3
1.7 ThefollowingsafetyhazardscaveatpertainsonlytotheTestMethodsportion,Section12ofthisspecification: This standard
does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
3
2.1 ASTM Standards:
A 194/A 194M SpecificationforCarbonandAlloySteelNutsforBoltsforHighPressureorHighTemperatureService,orBoth
A 325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
A 354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A 490M Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints [Metric]
A 563 Specification for Carbons and Alloy Steel Nuts
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
D 3951 Practice for Commercial Packaging
E 384 Test Method for Microindentation Hardness of Materials
E 709 Guide for Magnetic Particle Examination
E 1444 Practice for Magnetic Particle Testing
F 436 Specification for Hardened Steel Washers
F 606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
Direct Tension Indicators, and Rivets
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Jan. 15, 2008. Published JanuaryFebruary 2008. Originally approved in 1964. Last previous edition approved in 20062008 as A 490 – 068.
2
Available from American Institute of Steel Construction (AISC), One E. Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 490 – 08a
F 788/F 788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F 959 Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners
F 1136 Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners
F 1136M Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners [Metric]
F 1470 Guide for Fastener S
...