ASTM A307-10
(Specification)Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
ABSTRACT
This specification covers the chemical and mechanical requirements for three grades (Grades A, B, and C) of carbon steel bolts and studs in specified sizes. This specification does not cover the requirements for machine screws, thread cutting/forming screws, mechanical expansion anchors, or other similar externally threaded fasteners. When tested, sampled specimens shall adhere to specified values for chemical composition, hardness, tensile strength, yield point, elongation, and dimensions.
SCOPE
1.1 This specification covers the chemical and mechanical requirements of three grades of carbon steel bolts and studs in sizes ¼ in. through 4 in. The fasteners are designated by “Grade” denoting tensile strength and intended use, as follows:
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Designation:A307 −10
StandardSpecification for
1
Carbon Steel Bolts and Studs, 60000 PSI Tensile Strength
This standard is issued under the fixed designation A307; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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* 1.5 Supplementary Requirement S1 of an optional nature is
2
provided, which describes additional restrictions to be applied
1.1 This specification covers the chemical and mechanical
whenboltsaretobewelded.Itshallapplyonlywhenspecified
requirements of three grades of carbon steel bolts and studs in
in the inquiry, order, and contract.
1
sizes ⁄4 in. through 4 in. The fasteners are designated by
“Grade”denotingtensilestrengthandintendeduse,asfollows:
1.6 Terms used in this specification are defined in Termi-
Grade Description
nology F1789 unless otherwise defined herein.
Grade A Bolts and studs having a
2. Referenced Documents
minimum tensile strength of
60 ksi and intended for
3
2.1 ASTM Standards:
general applications,
Grade B Bolts and studs having a
A563Specification for Carbon and Alloy Steel Nuts
tensile strength of 60 to 100
A706/A706MSpecification for Low-Alloy Steel Deformed
ksi and intended for flanged
joints in piping systems with and Plain Bars for Concrete Reinforcement
cast iron flanges, and
A751Test Methods, Practices, and Terminology for Chemi-
Grade C Replaced by Specification
cal Analysis of Steel Products
F1554 Gr.36
B695Specification for Coatings of Zinc Mechanically De-
1.1.1 The term studs includes stud stock, sometimes re-
posited on Iron and Steel
ferred to as threaded rod.
D3951Practice for Commercial Packaging
1.2 This specification does not cover requirements for
F606Test Methods for Determining the Mechanical Proper-
machine screws, thread cutting/forming screws, mechanical
ties of Externally and Internally Threaded Fasteners,
expansion anchors or similar externally threaded fasteners.
Washers, Direct Tension Indicators, and Rivets
F1470Practice for Fastener Sampling for Specified Me-
1.3 Suitable nuts are covered in Specification A563. Unless
chanical Properties and Performance Inspection
otherwisespecified,thegradeandstyleofnutforeachgradeof
F1554Specification for Anchor Bolts, Steel, 36, 55, and
fastener, of all surface finishes, shall be as follows:
105-ksi Yield Strength
A
Fastener Grade and Size Nut Grade and Style
1 1
A ⁄4 to 1 ⁄2 in. A, hex F1789Terminology for F16 Mechanical Fasteners
1
A over 1 ⁄2 to 4 in. A, heavy hex
F2329Specification for Zinc Coating, Hot-Dip, Require-
1
B, ⁄4 to 4 in. A, heavy hex
ments for Application to Carbon and Alloy Steel Bolts,
A
Nuts of other grades and styles having specified proof load stresses (Specifica-
Screws, Washers, Nuts, and Special Threaded Fasteners
tion A563, Table 3) greater than the specified grade and style of nut are also
suitable.
2.2 ASME Standards:
4
1.4 Thevaluesstatedininch-poundunitsaretoberegarded B1.1 Unified Screw Threads
4
as the standard.
B18.2.1Square and Hex Bolts and Screws
5
B18.24Part Identifying Number (PIN) Code System
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,
3
Nuts, Rivets and Washers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2010. Published December 2010. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1947. Last previous edition approved in 2007 as A307–07b. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/A0307-10. the ASTM website.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
cation SA-307 in Section II of that Code. 4th Floor, New York, NY 10036, http://www.ansi.org.
*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 ----------------------
A307−10
5
Available from American Society of Mechanical Engineers (ASME), ASME
International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
1
---------------------- Page: 2 ----------------------
A307−10
6
2.3 SAE Standard: 4.5.3 When mechanically deposited is specified, the fasten-
J429Mechanical and Material Requirements For Externally ers shall be zinc-coated by the mechanical-deposition process
Threaded Fasteners
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
Designation:A307–07b Designation: A307 – 10
Standard Specification for
1
Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
This standard is issued under the fixed designation A307; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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*
1.1This specification
2
1.1 Thisspecification coversthechemicalandmechanicalrequirementsofthreegradesofcarbonsteelboltsandstudsinsizes
1
⁄4 in. through 4 in. The fasteners are designated by “Grade” denoting tensile strength and intended use, as follows:
Grade Description
Grade A Bolts and studs having a
minimum tensile strength of
60 ksi and intended for gen-
eral applications,
Grade B Bolts and studs having a
tensile strength of 60 to 100
ksi and intended for flanged
joints in piping systems with
cast iron flanges, and
Grade C Replaced by Specification
F1554 Gr.36
1.1.1 The term studs includes stud stock, sometimes referred to as threaded rod.
1.2 This specification does not cover requirements for machine screws, thread cutting/forming screws, mechanical expansion
anchors or similar externally threaded fasteners.
1.3 Suitable nuts are covered in Specification A563. Unless otherwise specified, the grade and style of nut for each grade of
fastener, of all surface finishes, shall be as follows:
A
Fastener Grade and Size Nut Grade and Style
1 1
A ⁄4 to 1 ⁄2 in. A, hex
1
A over 1 ⁄2to4in. A, heavy hex
1
B, ⁄4to4in. A, heavy hex
A
Nuts of other grades and styles having specified proof load stresses (SpecificationA563, Table 3) greater than the specified grade and style of nut are also suitable.
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 SupplementaryRequirementS1ofanoptionalnatureisprovided,whichdescribesadditionalrestrictionstobeappliedwhen
bolts are to be welded. It shall apply only when specified in the inquiry, order, and contract.
1.6 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.
2. Referenced Documents
3
2.1 ASTM Standards:
A563 Specification for Carbon and Alloy Steel Nuts
A706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
1
This specification is under the jurisdiction ofASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Dec.Oct. 1, 2007.2010. Published January 2008.December 2010. Originally approved in 1947. Last previous edition approved in 2007 as
A307–07ab. DOI: 10.1520/A0307-07B.10.1520/A0307-10.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-307 in Section II of that Code.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.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 ----------------------
A307 – 10
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1554 Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength
F1789 Terminology for F16 Mechanical Fasteners
F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws,
Washers, Nuts, and Special Threaded Fasteners
2.2 ASME Standards:
4
B1.1 Unified Screw Threads
4
B18.2.1 Square and Hex Bolts and Screws
5
B18.24 Part Identifying Number (PIN) Code System
6
2.3 SAE Standard:
J429 Mechanical and Material Requirements For Externally Threaded Fasteners
3. Ordering Information
3.1 Ordersforexternallythreadedfasteners(includingnutsandaccessories)underthisspecificationshallincludethefollowing:
3.1.1 AS
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
Designation:A307–07b Designation: A307 – 10
Standard Specification for
1
Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
This standard is issued under the fixed designation A307; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (ϵ) 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*
1.1This specification
2
1.1 Thisspecification coversthechemicalandmechanicalrequirementsofthreegradesofcarbonsteelboltsandstudsinsizes
1
⁄4 in. through 4 in. The fasteners are designated by “Grade” denoting tensile strength and intended use, as follows:
Grade Description
Grade A Bolts and studs having a
minimum tensile strength of
60 ksi and intended for gen-
eral applications,
Grade B Bolts and studs having a
tensile strength of 60 to 100
ksi and intended for flanged
joints in piping systems with
cast iron flanges, and
Grade C Replaced by Specification
F1554 Gr.36
1.1.1 The term studs includes stud stock, sometimes referred to as threaded rod.
1.2 This specification does not cover requirements for machine screws, thread cutting/forming screws, mechanical expansion
anchors or similar externally threaded fasteners.
1.3 Suitable nuts are covered in Specification A563. Unless otherwise specified, the grade and style of nut for each grade of
fastener, of all surface finishes, shall be as follows:
A
Fastener Grade and Size Nut Grade and Style
1 1
A ⁄4 to 1 ⁄2 in. A, hex
1
A over 1 ⁄2to4in. A, heavy hex
1
B, ⁄4to4in. A, heavy hex
A
Nuts of other grades and styles having specified proof load stresses (SpecificationA563, Table 3) greater than the specified grade and style of nut are also suitable.
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 SupplementaryRequirementS1ofanoptionalnatureisprovided,whichdescribesadditionalrestrictionstobeappliedwhen
bolts are to be welded. It shall apply only when specified in the inquiry, order, and contract.
1.6 Terms used in this specification are defined in Terminology F1789 unless otherwise defined herein.
2. Referenced Documents
3
2.1 ASTM Standards:
A563 Specification for Carbon and Alloy Steel Nuts
A706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
1
This specification is under the jurisdiction ofASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Dec.Oct. 1, 2007.2010. Published January 2008.December 2010. Originally approved in 1947. Last previous edition approved in 2007 as
A307–07ab. DOI: 10.1520/A0307-07B.10.1520/A0307-10.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-307 in Section II of that Code.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.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 ----------------------
A307 – 10
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1554 Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength
F1789 Terminology for F16 Mechanical Fasteners
F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws,
Washers, Nuts, and Special Threaded Fasteners
2.2 ASME Standards:
4
B1.1 Unified Screw Threads
4
B18.2.1 Square and Hex Bolts and Screws
5
B18.24 Part Identifying Number (PIN) Code System
6
2.3 SAE Standard:
J429 Mechanical and Material Requirements For Externally Threaded Fasteners
3. Ordering Information
3.1 Ordersforexternallythreadedfasteners(includingnutsandaccessories)underthisspecificationshallincludethefollowing:
3.1.1 AS
...
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