ASTM A325M-09

Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength [Metric]

ABSTRACT
This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts. The bolts are intended for use in structural connections. The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as follows: Type 1—Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel; and Type 3—Weathering Steel. Materials shall be tested and the individual grades shall conform to specified values of heat treatment, threading, hot-dip and mechanically coated zinc coatings, lubrication, secondary processing, chemical composition, mechanical properties such as hardness, tensile properties, and rotational capacity.
SCOPE
1.1 This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts having a minimum tensile strength of 830 MPa (Note 1).
1.2 The bolts are intended for use in structural connections. These connections are comparable to those covered under the requirements of the Specification for Structural Joints using ASTM 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 M12 to M36 inclusive. They are designated by type denoting chemical composition as follows:
1.3.1 Type 1—Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel.
1.3.2 Type 2—Withdrawn in 2003.
1.3.3 Type 3—Weathering Steel.
1.4 This specification is applicable to metric heavy hex, structural bolts only.
1.5 Terms used in this specification are defined in Terminology F 1789.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1—This specification is the metric companion to the inch pound Specification A 325.  
1.7 The following safety hazard caveat pertains only to the test methods portion, Section 10, 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: 31-Dec-2008
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaced By: ASTM A325M-13 - Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength (Metric)
• Effective Date: 15-Feb-2013

Standards Content (Sample)

Designation: A 325M – 09
Standard Specification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength (Metric)
This standard is issued under the fixed designation A 325M; 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* of this standard to establish appropriate safety and health
2 practices and determine the applicability of regulatory limita-
1.1 This specification covers two types of quenched and
tions prior to use.
tempered, steel, metric heavy hex structural bolts having a
minimum tensile strength of 830 MPa (Note 1).
2. Referenced Documents
1.2 The bolts are intended for use in structural connections.
4
2.1 ASTM Standards:
These connections are comparable to those covered under the
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on
requirements of the Specification for Structural Joints using
Iron and Steel Hardware
ASTM A 325 or A 490 bolts, approved by the Research
A 490M Specification for High-Strength Steel Bolts,
Council on Structural Connections; endorsed by the American
Classes10.9and10.9.3,forStructuralSteelJoints(Metric)
Institute of Steel Construction and by the Industrial Fastener
3 A 563M Specification for Carbon and Alloy Steel Nuts
Institute.
(Metric)
1.3 The bolts are furnished in sizes M12 to M36 inclusive.
A 751 Test Methods, Practices, and Terminology for
They are designated by type denoting chemical composition as
Chemical Analysis of Steel Products
follows:
B 695 Specification for Coatings of Zinc Mechanically
1.3.1 Type 1—Medium-carbon, carbon boron, medium car-
Deposited on Iron and Steel
bon alloy, or alloy boron steel.
D 3951 Practice for Commercial Packaging
1.3.2 Type 2—Withdrawn in 2003.
F 436M Specification for Hardened Steel Washers (Metric)
1.3.3 Type 3—Weathering Steel.
F 606M Test Methods for Determining the Mechanical
1.4 This specification is applicable to metric heavy hex,
Properties of Externally and InternallyThreaded Fasteners,
structural bolts only.
Washers, and Rivets (Metric)
1.5 Terms used in this specification are defined in Termi-
F 788/F 788M Specification for Surface Discontinuities of
nology F 1789.
Bolts, Screws, and Studs, Inch and Metric Series
1.6 The values stated in SI units are to be regarded as
F 959M Specification for Compressible-Washer-Type Di-
standard. No other units of measurement are included in this
rect Tension Indicators for Use With Structural Fasteners
standard.
(Metric)
NOTE 1—This specification is the metric companion to the inch pound
F 1136M Specification for Zinc/Aluminum Corrosion Pro-
Specification A 325.
tective Coatings for Fasteners (Metric)
1.7 The following safety hazard caveat pertains only to the
F 1470 Practice for Fastener Sampling for Specified Me-
test methods portion, Section 10, of this specification. This
chanical Properties and Performance Inspection
standard does not purport to address all of the safety concerns,
F 1789 Terminology for F16 Mechanical Fasteners
if any, associated with its use. It is the responsibility of the user
G 101 Guide for Estimating the Atmospheric Corrosion
Resistance of Low-Alloy Steels
5
2.2 ASME Standards:
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,
4
Nuts, Rivets and Washers. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2009. Published January 2009. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1979. Last previous edition approved in 2008 as A 325M – 08 . Standards volume information, refer to the standard’s Document Summary page on
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- the ASTM website.
5
cation SA-325M in Section II of that Code. Available from American Society of Mechanical Engineers (ASME), ASME
3
Available from American Institute of Steel Construction (AISC), One E. International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org. www.asme.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 ----------------------
A325M–09
B 1.13M Metric Screw Threads
1, coated in accor- coated in accor-
dance with dance with
B 18.2.3.7M Metric Heavy Hex Structural Bolts
Specification Specification
B 18.18.3M Inspection and Quality Assurance for Special
F 1136M, Grade 3 F 1136M
Purpose Fasteners
3, plain weathering
B 18.24 Part Identifying Number
...

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:A325M–08 Designation: A 325M – 09
Standard Specification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength [Metric](Metric)
This standard is issued under the fixed designation A 325M; 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
1.1 This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts having a minimum
tensile strength of 830 MPa (Note 1).
1.2 The bolts are intended for use in structural connections. These connections are comparable to those covered under the
requirements of the Specification for Structural Joints using ASTM A 325 or A 490 bolts, approved by the Research Council on
3
Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
1.3 The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as
follows:
1.3.1 Type 1—Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel.
1.3.2 Type 2—Withdrawn in 2003.
1.3.3 Type 3—Weathering Steel.
1.4 This specification is applicable to metric heavy hex, structural bolts only.
1.5 Terms used in this specification are defined in Terminology F 1789.
1.6The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
NOTE 1—This specification is the metric companion to the inch pound Specification A 325.
1.7 The following safety hazard caveat pertains only to the test methods portion, Section 10, 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.
NOTE1—This specification is the metric companion to the inch pound Specification A325.
2. Referenced Documents
4
2.1 ASTM Standards:
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A 490M Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints (Metric)
A 563M Specification for Carbon and Alloy Steel Nuts (Metric)
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B 695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D 3951 Practice for Commercial Packaging
F 436M Specification for Hardened Steel Washers (Metric)
F 606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
and Rivets (Metric)
F 788/F 788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F 959M Specification for Compressible-Washer-Type Direct Tension Indicators for Use With Structural Fasteners (Metric)
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 June 1, 2008. Published June 2008. Originally approved in 1979. Last previous edition approved in 2007 as A325M–07.
Current edition approved Jan. 1, 2009. Published January 2009. Originally approved in 1979. Last previous edition approved in 2008 as A 325M – 08 .
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-325M in Section II of that Code.
3
Available from American Institute of Steel Construction (AISC), One E. Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org.
4
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 ----------------------
A325M–09
F 1136M
...

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:A325M–08 Designation: A 325M – 09
Standard Specification for
Structural Bolts, Steel, Heat Treated 830 MPa Minimum
1
Tensile Strength [Metric](Metric)
This standard is issued under the fixed designation A 325M; 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
1.1 This specification covers two types of quenched and tempered, steel, metric heavy hex structural bolts having a minimum
tensile strength of 830 MPa (Note 1).
1.2 The bolts are intended for use in structural connections. These connections are comparable to those covered under the
requirements of the Specification for Structural Joints using ASTM A 325 or A 490 bolts, approved by the Research Council on
3
Structural Connections; endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.
1.3 The bolts are furnished in sizes M12 to M36 inclusive. They are designated by type denoting chemical composition as
follows:
1.3.1 Type 1—Medium-carbon, carbon boron, medium carbon alloy, or alloy boron steel.
1.3.2 Type 2—Withdrawn in 2003.
1.3.3 Type 3—Weathering Steel.
1.4 This specification is applicable to metric heavy hex, structural bolts only.
1.5 Terms used in this specification are defined in Terminology F 1789.
1.6The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
NOTE 1—This specification is the metric companion to the inch pound Specification A 325.
1.7 The following safety hazard caveat pertains only to the test methods portion, Section 10, 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.
NOTE1—This specification is the metric companion to the inch pound Specification A325.
2. Referenced Documents
4
2.1 ASTM Standards:
A 153/A 153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A 490M Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints (Metric)
A 563M Specification for Carbon and Alloy Steel Nuts (Metric)
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B 695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D 3951 Practice for Commercial Packaging
F 436M Specification for Hardened Steel Washers (Metric)
F 606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
and Rivets (Metric)
F 788/F 788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F 959M Specification for Compressible-Washer-Type Direct Tension Indicators for Use With Structural Fasteners (Metric)
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 June 1, 2008. Published June 2008. Originally approved in 1979. Last previous edition approved in 2007 as A325M–07.
Current edition approved Jan. 1, 2009. Published January 2009. Originally approved in 1979. Last previous edition approved in 2008 as A 325M – 08 .
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-325M in Section II of that Code.
3
Available from American Institute of Steel Construction (AISC), One E. Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org.
4
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 ----------------------
A325M–09
F 1136M
...