ASTM F2329/F2329M-15
(Specification)Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners
Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners
ABSTRACT
This specification covers the requirements for hot-dip zinc coating applied to carbon steel and alloy steel bolts, screws, washers, nuts, and special threaded fasteners applied by the hot-dip coating process. The zinc used for the coating shall conform to the chemical composition required. The following tests shall be made to ensure that the zinc coating is being furnished in accordance with this specification: coating thickness; finish and appearance; embrittlement test; and adhesion test.
SCOPE
1.1 This specification covers the requirements for hot-dip zinc coating applied to carbon steel and alloy steel bolts, screws, washers, nuts, and special threaded fasteners. It also provides for minor coating repairs. Nails and rivets are not included in this specification.
1.2 It is intended to be applicable to fasteners that are centrifuged or otherwise handled to remove excess galvanizing bath metal (free zinc).
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 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.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:F2329/F2329M −15
Standard Specification for
Zinc Coating, Hot-Dip, Requirements for Application to
Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and
1
Special Threaded Fasteners
ThisstandardisissuedunderthefixeddesignationF2329/F2329M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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.
3
1. Scope* ric) (Withdrawn 2021)
A780/A780M PracticeforRepairofDamagedandUncoated
1.1 This specification covers the requirements for hot-dip
Areas of Hot-Dip Galvanized Coatings
zinc coating applied to carbon steel and alloy steel bolts,
B487 Test Method for Measurement of Metal and Oxide
screws, washers, nuts, and special threaded fasteners. It also
Coating Thickness by Microscopical Examination of
provides for minor coating repairs. Nails and rivets are not
Cross Section
included in this specification.
E376 Practice for Measuring Coating Thickness by
1.2 It is intended to be applicable to fasteners that are
Magnetic-Field or Eddy Current (Electromagnetic) Test-
centrifuged or otherwise handled to remove excess galvanizing
ing Methods
bath metal (free zinc).
F606/F606M Test Methods for Determining the Mechanical
1.3 The values stated in either SI units or inch-pound units Properties of Externally and Internally Threaded
Fasteners, Washers, Direct Tension Indicators, and Rivets
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each F1470 Practice for Fastener Sampling for Specified Me-
chanical Properties and Performance Inspection
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance F1789 Terminology for F16 Mechanical Fasteners
with the standard.
3. Terminology
1.4 This standard does not purport to address all of the
3.1 Definitions:
safety concerns, if any, associated with its use. It is the
3.1.1 Terms used in this specification are defined in Termi-
responsibility of the user of this standard to establish appro-
nology F1789 unless otherwise defined in this specification.
priate safety and health practices and determine the applica-
3.1.2 batch lot—quantity of identical parts cleaned, pickled,
bility of regulatory limitations prior to use.
fluxed, and galvanized together at one time in a galvanizing
basket.
2. Referenced Documents
2
3.1.3 galvanizing—hot-dip zinc coating.
2.1 ASTM Standards:
A153/A153M Specification for Zinc Coating (Hot-Dip) on
3.1.4 high temperature galvanizing—galvanizing process
Iron and Steel Hardware
carried out in a ceramic vessel (kettle) at an approximate
A394 Specification for Steel Transmission Tower Bolts,
temperature ranging between 990°F and 1040°F [530°C and
Zinc-Coated and Bare
560°C].
A563 SpecificationforCarbonandAlloySteelNuts(Metric)
3.1.5 hot-dip zinc coating of mechanical fasteners—process
A0563_A0563M
whereby fasteners are zinc coated by immersion in a bath of
A563M Specification for Carbon andAlloy Steel Nuts (Met-
molten zinc, resulting in the formation of the iron/zinc alloy
coating and a zinc coating at the surface of the fastener. This
process involves the removal of excess zinc by spinning the
1
This specification is under the jurisdiction of ASTM Committee F16 on
parts in a centrifuge, or brushing the threaded portion, or
Fasteners and is the direct responsibility of Subcommittee F16.03 on Coatings on
handling otherwise to remove the excess zinc.
Fasteners.
Current edition approved July 1, 2015. Published September 2015. Originally
3.1.6 production lot—batches of parts originating from the
approved in 2005. Last previous edition approved in 2013 as F2329-13. DOI:
same manufacturing lot, processed continuously through
10.1520/F2329_F2329-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.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 ----------------------
F2329/F2329M−15
cleaning, pickling, fluxing, dipping in molten zinc and spun in 5.3.1 Parts shall be spun immediately following removal
a centrifuge, or other means, without any significant c
...
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.
Designation: F2329 − 13 F2329/F2329M − 15
Standard Specification for
Zinc Coating, Hot-Dip, Requirements for Application to
Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and
1
Special Threaded Fasteners
This standard is issued under the fixed designation F2329;F2329/F2329M; 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.
1. Scope*
1.1 This specification covers the requirements for hot-dip zinc coating applied to carbon steel and alloy steel bolts, screws,
washers, nuts, and special threaded fasteners. It also provides for minor coating repairs. Nails and rivets are not included in this
specification.
1.2 It is intended to be applicable to fasteners that are centrifuged or otherwise handled to remove excess galvanizing bath metal
(free zinc).
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.4 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
2
2.1 ASTM Standards:
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A394 Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare
A563 Specification for Carbon and Alloy Steel Nuts
A563M Specification for Carbon and Alloy Steel Nuts (Metric)
A780A780/A780M Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings
B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
E376 Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Testing Methods
F606F606/F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners,
Washers, and Rivets (Metric) F0606_F0606M Direct Tension Indicators, and Rivets
F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and
Rivets (Metric)
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1789 Terminology for F16 Mechanical Fasteners
3. Terminology
3.1 Definitions:
3.1.1 Terms used in this specification are defined in Terminology F1789 unless otherwise defined in this specification.
3.1.2 batch lot—quantity of identical parts cleaned, pickled, fluxed, and galvanized together at one time in a galvanizing basket.
3.1.3 galvanizing—hot-dip zinc coating.
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.03 on Coatings on Fasteners.
Current edition approved June 1, 2013July 1, 2015. Published June 2013September 2015. Originally approved in 2005. Last previous edition approved in 20112013 as
F2329-11.F2329-13. DOI: 10.1520/F2329-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@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 ----------------------
F2329/F2329M − 15
3.1.4 high temperature galvanizing—galvanizing process carried out in a ceramic vessel (kettle) at an approximate temperature
ranging between 990°F and 1040°F [530°C and 560°C].
3.1.5 hot-dip zinc coating of mechanical fasteners—process whereby fasteners are zinc coated by immersion in a bath of molten
zinc, resulting in the formation of the iron/zinc alloy coating and a zinc coating at the surface of the fastener. This process involves
the removal of excess zinc by spinning the parts in a centrifuge, or brushing the threaded portion, or handling otherwise to remove
the excess zinc.
3.1.6 production lot—batches of parts origina
...
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
Designation: F2329/F2329M − 15
Standard Specification for
Zinc Coating, Hot-Dip, Requirements for Application to
Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and
1
Special Threaded Fasteners
This standard is issued under the fixed designation F2329/F2329M; 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.
3
1. Scope* ric) (Withdrawn 2021)
A780/A780M Practice for Repair of Damaged and Uncoated
1.1 This specification covers the requirements for hot-dip
Areas of Hot-Dip Galvanized Coatings
zinc coating applied to carbon steel and alloy steel bolts,
B487 Test Method for Measurement of Metal and Oxide
screws, washers, nuts, and special threaded fasteners. It also
Coating Thickness by Microscopical Examination of
provides for minor coating repairs. Nails and rivets are not
Cross Section
included in this specification.
E376 Practice for Measuring Coating Thickness by
1.2 It is intended to be applicable to fasteners that are
Magnetic-Field or Eddy Current (Electromagnetic) Test-
centrifuged or otherwise handled to remove excess galvanizing
ing Methods
bath metal (free zinc).
F606/F606M Test Methods for Determining the Mechanical
Properties of Externally and Internally Threaded
1.3 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in Fasteners, Washers, Direct Tension Indicators, and Rivets
F1470 Practice for Fastener Sampling for Specified Me-
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining chanical Properties and Performance Inspection
F1789 Terminology for F16 Mechanical Fasteners
values from the two systems may result in non-conformance
with the standard.
3. Terminology
1.4 This standard does not purport to address all of the
3.1 Definitions:
safety concerns, if any, associated with its use. It is the
3.1.1 Terms used in this specification are defined in Termi-
responsibility of the user of this standard to establish appro-
nology F1789 unless otherwise defined in this specification.
priate safety and health practices and determine the applica-
3.1.2 batch lot—quantity of identical parts cleaned, pickled,
bility of regulatory limitations prior to use.
fluxed, and galvanized together at one time in a galvanizing
basket.
2. Referenced Documents
2
3.1.3 galvanizing—hot-dip zinc coating.
2.1 ASTM Standards:
A153/A153M Specification for Zinc Coating (Hot-Dip) on
3.1.4 high temperature galvanizing—galvanizing process
Iron and Steel Hardware
carried out in a ceramic vessel (kettle) at an approximate
A394 Specification for Steel Transmission Tower Bolts,
temperature ranging between 990°F and 1040°F [530°C and
Zinc-Coated and Bare
560°C].
A563 Specification for Carbon and Alloy Steel Nuts (Metric)
3.1.5 hot-dip zinc coating of mechanical fasteners—process
A0563_A0563M
whereby fasteners are zinc coated by immersion in a bath of
A563M Specification for Carbon and Alloy Steel Nuts (Met-
molten zinc, resulting in the formation of the iron/zinc alloy
coating and a zinc coating at the surface of the fastener. This
process involves the removal of excess zinc by spinning the
1
This specification is under the jurisdiction of ASTM Committee F16 on
parts in a centrifuge, or brushing the threaded portion, or
Fasteners and is the direct responsibility of Subcommittee F16.03 on Coatings on
handling otherwise to remove the excess zinc.
Fasteners.
Current edition approved July 1, 2015. Published September 2015. Originally
3.1.6 production lot—batches of parts originating from the
approved in 2005. Last previous edition approved in 2013 as F2329-13. DOI:
same manufacturing lot, processed continuously through
10.1520/F2329_F2329-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.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 ----------------------
F2329/F2329M − 15
cleaning, pickling, fluxing, dipping in molten zinc and spun in 5.3.1 Parts shall be spun immediately following removal
a centrifuge, or other means, without any significant change in from the galvanizing bath and quenched in water. In addition,
time, temperature, and concentrat
...
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