ASTM A307-04
(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
SCOPE
1.1 This specification covers the chemical and mechanical requirements of three grades of carbon steel bolts and studs in sizes 1/4 in. (6.35 mm) through 4 in. (104 mm). The fasteners are designated by "Grade" denoting tensile strength and intended use, as follows:
GradeDescriptionGrade ABolts and studs having a minimum tensile strength of 60 ksi (414 MPa) and intended for general applications,Grade BBolts and studs having a tensile strength of 60 to 100 ksi (414 to 690 MPa) and intended for flanged joints in piping systems with cast iron flanges, andGrade CNonheaded anchor bolts, either bent or straight, having properties conforming to Specification A 36/A 36M (tensile strength of 58 to 80 ksi (400 to 550 MPa)) and intended for structural anchorage purposes.
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 A 563. Unless otherwise specified, the grade and style of nut for each grade of fastener, of all surface finishes, shall be as follows:
Fastener Grade and Size Nut Grade and StyleAA, C, 1/4 to 11/2in.A, hexA, C, over 1 1/2 to 4 in.A, heavy hexB, 1/ 4 to 4 in.A, heavy hexA Nuts of other grades and styles having specified proof load stresses (Specification A 563, 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. The values given in parentheses are for information only.
1.5 Supplementary Requirement S1 of an optional nature is provided, which describes additional restrictions to be applied when 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 F 1789 unless otherwise defined herein.
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Designation: A 307 – 04
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 (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* 1.4 Thevaluesstatedininch-poundunitsaretoberegarded
2
as the standard. The values given in parentheses are for
1.1 This specification covers the chemical and mechanical
information only.
requirements of three grades of carbon steel bolts and studs in
1.5 Supplementary Requirement S1 of an optional nature is
1
sizes ⁄4 in. (6.35 mm) through 4 in. (104 mm). The fasteners
provided, which describes additional restrictions to be applied
are designated by “Grade” denoting tensile strength and
whenboltsaretobewelded.Itshallapplyonlywhenspecified
intended use, as follows:
in the inquiry, order, and contract.
Grade Description
1.6 Terms used in this specification are defined in Termi-
Grade A Bolts and studs having a
nology F1789 unless otherwise defined herein.
minimum tensile strength of
60 ksi (414 MPa) and in-
2. Referenced Documents
tended for general applica-
3
tions,
2.1 ASTM Standards:
Grade B Bolts and studs having a
A36/A36M Specification for Carbon Structural Steel
tensile strength of 60 to 100
ksi (414 to 690 MPa) and A153/A153M SpecificationforZincCoating(Hot-Dip)on
intended for flanged joints in
Iron and Steel Hardware
piping systems with cast iron
A370 TestMethodsandDefinitionsforMechanicalTesting
flanges, and
Grade C Nonheaded anchor bolts, of Steel Products
either bent or straight, hav-
A563 Specification for Carbon and Alloy Steel Nuts
ing properties conforming to
A 706/A 706M Specification for Low-Alloy Steel De-
Specification A 36/A 36M
(tensile strength of 58 to 80
formed Bars for Concrete Reinforcement
ksi (400 to 550 MPa)) and
A 751 Test Methods, Practices, and Terminology for
intended for structural an-
Chemical Analysis of Steel Products
chorage purposes.
B695 Specification for Coatings of Zinc Mechanically
1.1.1 The term studs includes stud stock, sometimes re-
Deposited on Iron and Steel
ferred to as threaded rod.
D3951 Practice for Commercial Packaging
1.2 This specification does not cover requirements for
F606 Test Methods for Determining the Mechanical Prop-
machine screws, thread cutting/forming screws, mechanical
erties of Externally and Internally Threaded Fasteners,
expansion anchors or similar externally threaded fasteners.
Washers, and Rivets
1.3 SuitablenutsarecoveredinSpecificationA563.Unless
F1470 GuideforFastenerSamplingforSpecifiedMechani-
otherwisespecified,thegradeandstyleofnutforeachgradeof
cal Properties and Performance Inspection
fastener, of all surface finishes, shall be as follows:
F1789 Terminology for F16 Mechanical Fasteners
A
Fastener Grade and Size Nut Grade and Style
2.2 ANSI/ASME Standards:
1 1
A, C, ⁄4 to 1 ⁄2 in. A, hex
4
1 B1.1 Unified Screw Threads
A, C, over 1 ⁄2 to 4 in. A, heavy hex
4
1
B, ⁄4 to 4 in. A, heavy hex
B18.2.1 Square and Hex Bolts and Screws
A 5
Nuts of other grades and styles having specified proof load stresses (Speci-
B18.24.1 Part Identifying Number (PIN) Code System
fication A 563, Table 3) greater than the specified grade and style of nut are also
suitable.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction of ASTM Committee F16 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Standards volume information, refer to the standard’s Document Summary page on
Nuts, Rivets, and Washers. the ASTM website.
4
Current edition approved Aug. 1, 2004. Published August 2004. Originally Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
approved in 1947. Last previous edition approved in 2003 as A307–03. 4th Floor, New York, NY 10036.
2 5
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Society of Mechanical Engineers (ASME), ASME
cation SA-307 in Section II of that Code. International Headquarters, Three Park Ave., New York, NY 10016-5990.
*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 ----------------------
A307–04
2.3 Military Standard: posited zinc coating in accordance with Specification B695,
MIL-STD105 Single Sampling Plan for Normal Inspec
...
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:A307–03 Designation: A 307 – 04
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 (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*
2
1.1 Thisspecification coversthechemicalandmechanicalrequirementsofthreegradesofcarbonsteelboltsandstudsinsizes
1
⁄4 in. (6.35 mm) through 4 in. (104 mm). 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 (414 MPa) and in-
tended for general applica-
tions,
Grade B Bolts and studs having a
tensile strength of 60 to 100
ksi (414 to 690 MPa) and
intended for flanged joints in
piping systems with cast iron
flanges, and
Grade C Nonheaded anchor bolts,
either bent or straight, hav-
ing properties conforming to
Specification A 36 (tensile
strength of 58 to 80 ksi (400
to 550 MPa)) and intended
for structural anchorage pur-
poses.
Grade C Nonheaded anchor bolts,
either bent or straight, hav-
ing properties conforming to
Specification A 36/A 36M
(tensile strength of 58 to 80
ksi (400 to 550 MPa)) and
intended for structural an-
chorage purposes.
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, C, ⁄4 to 1 ⁄2 in. A, hex
1
A, C, over 1 ⁄2 to 4 in. A, heavy hex
1
B, ⁄4to4in. A, heavy hex
A
Nuts of other grades and styles having specified proof load stresses (SpecificationA 563, Table 3) greater than the specified grade and style of nut are also suitable.
1.4 Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformation
only.
1.5 SupplementaryRequirementS1ofanoptionalnatureisprovided,whichdescribesadditionalrestrictionstobeappliedwhen
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 Oct.Aug. 1, 2003.2004. Published October 2003.August 2004. Originally approved in 1947. Last previous edition approved in 20022003 as
A307–023.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-307 in Section II of that Code.
*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 ----------------------
A307–04
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 SpecificationTerminology F1789 unless otherwise defined herein.
2. Referenced Documents
3
2.1 ASTM Standards:
A36/A36M Specification for Carbon Structural Steel
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A563 Specification for Carbon and Alloy Steel Nuts
A706/A706M Specification for Low-Alloy Steel Deformed 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 Test Methods for Determining the Mechanical Properties of Externally and InternallyThreaded Fasteners,Washers, and
Rivets
F1470 Guide for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1789 Terminology for F16 Mechanical Fasteners
2.2 ANSI/ASME Standards:
4
B1.1 Unified Screw Threads
4
B18.2.1 Square and Hex Bolts and Screws
5
B18.24.1 Part Identifying Number (PIN) Code System
2.3 Military Standard:
6
MIL-STD105 Single Sampling Plan for Normal Inspection
3. Ordering Information
...
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