ASTM F2329-11
(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 applied by the hot-dip coating process. 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 inch-pound units are to be regarded as standard. No other units of measurement are included in this 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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Designation:F2329 −11
StandardSpecification 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; 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 E376 Practice for Measuring Coating Thickness by
Magnetic-Field or Eddy-Current (Electromagnetic) Test-
1.1 This specification covers the requirements for hot-dip
ing Methods
zinc coating applied to carbon steel and alloy steel bolts,
F606 Test Methods for Determining the Mechanical Proper-
screws, washers, nuts, and special threaded fasteners applied
ties of Externally and Internally Threaded Fasteners,
by the hot-dip coating process. Nails and rivets are not
Washers, Direct Tension Indicators, and Rivets
included in this specification.
F606M Test Methods for Determining the Mechanical Prop-
1.2 It is intended to be applicable to fasteners that are
erties of Externally and Internally Threaded Fasteners,
centrifuged or otherwise handled to remove excess galvanizing
Washers, and Rivets (Metric)
bath metal (free zinc).
F1470 Practice for Fastener Sampling for Specified Me-
1.3 The values stated in either SI units or inch-pound units
chanical Properties and Performance Inspection
are to be regarded separately as standard. The values stated in
F1789 Terminology for F16 Mechanical Fasteners
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
3. Terminology
values from the two systems may result in non-conformance
3.1 Definitions:
with the standard.
3.1.1 Terms used in this specification are defined in Termi-
1.4 This standard does not purport to address all of the
nology F1789 unless otherwise defined in this specification.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 3.1.2 batch lot—quantity of identical parts cleaned, pickled,
priate safety and health practices and determine the applica-
fluxed, and galvanized together at one time in a galvanizing
bility of regulatory limitations prior to use. basket.
3.1.3 galvanizing—hot-dip zinc coating.
2. Referenced Documents
2
2.1 ASTM Standards: 3.1.4 high temperature galvanizing—galvanizing process
A153/A153M Specification for Zinc Coating (Hot-Dip) on carried out in a ceramic vessel (kettle) at an approximate
Iron and Steel Hardware temperature ranging between 990°F and 1040°F [530°C and
A563 Specification for Carbon and Alloy Steel Nuts 560°C].
A563M Specification for Carbon andAlloy Steel Nuts (Met-
3.1.5 hot-dip zinc coating of mechanical fasteners—process
ric)
whereby fasteners are zinc coated by immersion in a bath of
B487 Test Method for Measurement of Metal and Oxide
molten zinc, resulting in the formation of the iron/zinc alloy
Coating Thickness by Microscopical Examination of
coating and a zinc coating at the surface of the fastener. This
Cross Section
process involves the removal of excess zinc by spinning the
parts in a centrifuge, or brushing the threaded portion, or
1
This specification is under the jurisdiction of ASTM Committee F16 on
handling otherwise to remove the excess zinc.
Fasteners and is the direct responsibility of Subcommittee F16.03 on Coatings on
Fasteners.
3.1.6 production lot—batches of parts originating from the
Current edition approved Dec. 1, 2011. Published December 2011. Originally
same manufacturing lot, processed continuously through
approved in 2005. Last previous edition approved in 2011 as F2329-05(2011). DOI:
10.1520/F2329-11.
cleaning, pickling, fluxing, dipping in molten zinc and spun in
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
a centrifuge, or other means, without any significant change in
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
time, temperature, and concentration of the constituents of the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. process.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2329−11
3.1.7 stress relief—process of heating parts for a definite 5.4 Alteration of Threaded Fasteners:
timeatagiventemperatureinordertorelievestressinducedby 5.4.1 Fasteners that have been hot-dip galvanized shall not
work hardening. be further altered (such as subjected to a cutting, rolling, or
finishing-tool operation) by the galvanizer unless specifically
...
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:F2329–05 (Reapproved 2011) Designation: F2329 – 11
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; 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 applied by the hot-dip coating process. Nails and rivets are not included in this
specification.
1.2 Itisintendedtobeapplicabletofastenersthatarecentrifugedorotherwisehandledtoremoveexcessgalvanizingbathmetal
(free zinc).
1.3The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
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
A563 Specification for Carbon and Alloy Steel Nuts
A563M Specification for Carbon and Alloy Steel Nuts (Metric)
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
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
F606M TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,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 Terms used in this specification are defined in Terminology F1789 unless otherwise defined in this specification.
3.1.1 batchlot—quantity of identical parts cleaned, pickled, fluxed, and galvanized together at one time in a galvanizing basket.
3.1.2 galvanizing—hot-dip zinc coating.
3.1.3 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].
3.1.4 hot-dipzinccoatingofmechanicalfasteners—processwherebyfastenersarezinccoatedbyimmersioninabathofmolten
zinc, resulting in the formation of the iron/zinc alloy coating and a zinc coating at the surface of the fastener.This process involves
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 MayDec. 1, 2011. Published JuneDecember 2011. Originally approved in 2005. Last previous edition approved in 20052011 as F2329-05(2011).
DOI: 10.1520/F2329-05R11.10.1520/F2329-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
F2329 – 11
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.
3.1.5 production lot—batches of parts originating from the same manufacturing lot, processed continuously through cleaning,
pickling, fluxing, dipping in molten zinc and spun in a centrifuge, or other means, without any significant change in time,
temperature, and concentration of the 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:F2329–05 (Reapproved 2011) Designation: F2329 – 11
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; 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 applied by the hot-dip coating process. Nails and rivets are not included in this
specification.
1.2 Itisintendedtobeapplicabletofastenersthatarecentrifugedorotherwisehandledtoremoveexcessgalvanizingbathmetal
(free zinc).
1.3The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
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
A563 Specification for Carbon and Alloy Steel Nuts
A563M Specification for Carbon and Alloy Steel Nuts (Metric)
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
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
F606M TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,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 Terms used in this specification are defined in Terminology F1789 unless otherwise defined in this specification.
3.1.1 batchlot—quantity of identical parts cleaned, pickled, fluxed, and galvanized together at one time in a galvanizing basket.
3.1.2 galvanizing—hot-dip zinc coating.
3.1.3 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].
3.1.4 hot-dipzinccoatingofmechanicalfasteners—processwherebyfastenersarezinccoatedbyimmersioninabathofmolten
zinc, resulting in the formation of the iron/zinc alloy coating and a zinc coating at the surface of the fastener.This process involves
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 MayDec. 1, 2011. Published JuneDecember 2011. Originally approved in 2005. Last previous edition approved in 20052011 as F2329-05(2011).
DOI: 10.1520/F2329-05R11.10.1520/F2329-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
F2329 – 11
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.
3.1.5 production lot—batches of parts originating from the same manufacturing lot, processed continuously through cleaning,
pickling, fluxing, dipping in molten zinc and spun in a centrifuge, or other means, without any significant change in time,
temperature, and concentration of the c
...
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