ASTM A307-02
(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:Grade DescriptionGrade A Bolts and studs having a
minimum tensile strength of
60 ksi (414 MPa) and intended
for general applications,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, andGrade C Nonheaded anchor bolts,
either bent or straight, having
properties conforming to
Specification A 36 (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 Style A, C, 1/4 to 1 1/2 in.A, hex A, C, over 1 1/2 to 4 in.A, heavy hex B, 1/ 4 to 4 in.A, heavy hex 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.
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Designation: A 307 – 02
Standard Specification for
1
Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
This standard is issued under the fixed designation A 307; 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* 1.4 The values stated in inch-pound units are to be regarded
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 1.5 Supplementary Requirement S1 of an optional nature is
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
when bolts are to be welded. It shall apply only when specified
intended use, as follows:
in the inquiry, order, and contract.
Grade Description
2. Referenced Documents
Grade A Bolts and studs having a
minimum tensile strength of
2.1 ASTM Standards:
60 ksi (414 MPa) and in-
3
A 36/A 36M Specification for Carbon Structural Steel
tended for general applica-
tions,
A 153 Specification for Zinc Coating (Hot-Dip) on Iron and
Grade B Bolts and studs having a
4
Steel Hardware
tensile strength of 60 to 100
A 370 Test Methods and Definitions for Mechanical Testing
ksi (414 to 690 MPa) and
5
intended for flanged joints in
of Steel Products
piping systems with cast iron
6
A 563 Specification for Carbon and Alloy Steel Nuts
flanges, and
Grade C Nonheaded anchor bolts, A 706/A706M Specification for Low-Alloy Steel Deformed
3
either bent or straight, hav-
Bars for Concrete Reinforcement
ing properties conforming to
A 751 Test Methods, Practices, and Terminology for
Specification A 36 (tensile
5
strength of 58 to 80 ksi (400 Chemical Analysis of Steel Products
to 550 MPa)) and intended
B 695 Specification for Coatings of Zinc Mechanically
for structural anchorage pur-
7
Deposited on Iron and Steel
poses.
8
D 3951 Practice for Commercial Packaging
1.1.1 The term studs includes stud stock, sometimes re-
F 606 Test Methods for Determining the Mechanical Prop-
ferred to as threaded rod.
erties of Externally and Internally Threaded Fasteners,
1.2 This specification does not cover requirements for
6
Washers, and Rivets
machine screws, thread cutting/forming screws, mechanical
F 1470 Guide for Fastener Sampling for Specified Mechani-
expansion anchors or similar externally threaded fasteners.
6
cal Properties and Performance Inspection
1.3 Suitable nuts are covered in Specification A 563. Unless
2.2 ANSI/ASME Standards:
otherwise specified, the grade and style of nut for each grade of
9
B 1.1 Unified Screw Threads
fastener, of all surface finishes, shall be as follows:
9
B 18.2.1 Square and Hex Bolts and Screws
A
Fastener Grade and Size Nut Grade and Style 10
B 18.24.1 Part Identifying Number (PIN) Code System
1 1
A, C, ⁄4 to 1 ⁄2 in. A, hex
1 2.3 Military Standard:
A, C, over 1 ⁄2 to 4 in. A, heavy hex
1
B, ⁄4 to 4 in. A, heavy hex
A
Nuts of other grades and styles having specified proof load stresses (Speci-
fication A 563, Table 3) greater than the specified grade and style of nut are also
suitable. 3
Annual Book of ASTM Standards, Vol 01.04.
4
Annual Book of ASTM Standards, Vol 01.06.
5
Annual Book of ASTM Standards, Vol 01.03.
1 6
This specification is under the jurisdiction of ASTM Committee F16 on Annual Book of ASTM Standards, Vol 01.08.
7
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Annual Book of ASTM Standards, Vol 02.05.
8
Nuts, Rivets, and Washers. Annual Book of ASTM Standards, Vol 15.09.
9
Current edition approved Oct. 10, 2002. Published November 2002. Originally Available from American National Standards Institute, 11 West 42nd St., 13th
published as A 307 – 47 T. Last previous edition A 307 – 00. Floor, New York, NY 10036.
2 10
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Society of Mechanical Engineers, Three Park
cation SA-307 in Section II of that Code. Avenue, 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 ----------------------
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A307–02
MIL-STD 105 Single Sampling Plan f
...
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:A 307–00 Designation: A 307 – 02
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.
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
bolts are to be welded. It shall apply only when specified in the inquiry, order, and contract.
2. Referenced Documents
2.1 ASTM Standards:
3
A36/A 36M Specification for Carbon Structural Steel
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.
CurrenteditionapprovedMayOct.10,2000.2002.PublishedJuly2000.November2002.OriginallypublishedasA307–47T.LastpreviouseditionA307–97.A307–00.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-307 in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 01.04.
*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 ----------------------
A307–02
4
A153 Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
5
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
6
A563 Specification for Carbon and Alloy Steel Nuts
3
A706/A706M Specification for Low-Alloy Steel Deformed Bars for Concrete Reinforcement
5
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
7
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
8
D3951 Practice for Commercial Packaging
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and
6
Rivets
6
F1470 Guide for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
2.2 ANSI/ASME Standards:
B1.1Unified Screw Threads
9
B1.1 Unified Screw Threads
9
B18.2.1 Square and Hex Bolts and Screws
10
B18.24.1 Part Identifying Number (PIN) Code System
2.3 Military Standard:
11
MIL-STD105 Single Sampling Plan for Normal Inspection
3. Ordering Information
3.1 Ordersforexternallythreadedfasteners(includingnutsandaccessories)underthisspecificationshallincludethefollowing:
3.1.1 ASTM designation and year of issue,
3.1.2 Name of product, bolts or studs; and bolt head style, that is, hex or heavy hex,
3.1.3 Grade, that is, A, or B, or C. If no grade is specified, Grade A is
...
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