ASTM F959/F959M-17a
(Specification)Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
ABSTRACT
This specification covers the requirements for two types (Types 8.8 and 10.9) of compressible-washer-type direct tension indicators, in nominal diameter sizes M16 through M36, capable of indicating the achievement of a specified minimum bolt tension in a structural bolt and are intended for installation under either a bolt head or a hardened washer. Steel materials used in the manufacture of direct tension indicators shall be designed, processed, heat treated, and protectively coated as specified. The direct tension indicators shall conform to required chemical composition, compression load, outside diameter, number of protrusions, thickness values, inside diameter, and protrusion tangential diameter values.
SCOPE
1.1 This specification covers the requirements for compressible-washer-type direct tension indicators, (DTIs) capable of indicating the achievement of a specified minimum tension in a structural bolting assembly.
1.2 Eight types of DTIs in nominal diameter sizes 1/2 through 1 1/2 in. as well as M16 through M36 are covered:
1.2.1 Type 325-1—DTIs for use with Specification F3125 Grade A325 Type 1 bolts or Grade F1852 assemblies.
1.2.2 Type 325–3—DTIs for use with Specification F3125 Grade A325 Type 3 bolts or Grade F1852 Type 3 assemblies.
1.2.3 Type 490–1—DTIs for use with Specification F3125 Grade A490 Type 1 bolts or Grade F2280 assemblies.
1.2.4 Type 490–3—DTIs for use with Specification F3125 Grade A490 Type 3 bolts Grade F2280 Type 3 assemblies.
1.2.5 Type 8.8-1—DTIs for use with Specification F3125 Grade A325M Type 1 bolts.
1.2.6 Type 8.8-3—DTIs for use with Specification F3125 Grade A325M Type 3 bolts.
1.2.7 Type 10.9-1—DTIs for use with Specification F3125 Grade A490M Type 1 bolts.
1.2.8 Type 10.9-3—DTIs for use with Specification F3125 Grade A490M Type 3 bolts.
1.3 DTIs are intended for installation with the protrusions against a hardened surface such as a bolt head, a hardened nut, or a hardened washer. (See Research Council on Structural Connections: Specification for Structural Joints Using High–Strength Bolts.)
1.4 This specification provides for furnishing Type 3 DTIs to a Chemical Composition Requirement or a Corrosion Resistance Index (CRI) at the manufacturer’s discretion.
1.5 Terms used in this specification are defined in Terminology F1789 unless otherwise specified.
1.6 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.
1.7 The following precautionary statement pertains only to the test method portions, Section 10 and Appendix X1 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
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:F959/F959M −17a
Standard Specification for
Compressible-Washer-Type Direct Tension Indicators for
1
Use with Structural Fasteners, Inch and Metric Series
This standard is issued under the fixed designation F959/F959M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.6 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
1.1 This specification covers the requirements for
each system are not necessarily exact equivalents; therefore, to
compressible-washer-type direct tension indicators, (DTIs)
ensure conformance with the standard, each system shall be
capable of indicating the achievement of a specified minimum
used independently of the other, and values from the two
tension in a structural bolting assembly.
systems shall not be combined.
1
1.2 Eight types of DTIs in nominal diameter sizes ⁄2
1.7 The following precautionary statement pertains only to
1
through 1 ⁄2 in. as well as M16 through M36 are covered:
the test method portions, Section 10 and Appendix X1 of this
1.2.1 Type 325-1—DTIs for use with Specification F3125
specification: This standard does not purport to address all of
Grade A325 Type 1 bolts or Grade F1852 assemblies.
the safety concerns, if any, associated with its use. It is the
1.2.2 Type 325–3—DTIs for use with Specification F3125
responsibility of the user of this standard to establish appro-
Grade A325 Type 3 bolts or Grade F1852 Type 3 assemblies.
priate safety, health, and environmental practices and deter-
1.2.3 Type 490–1—DTIs for use with Specification F3125
mine the applicability of regulatory limitations prior to use.
Grade A490 Type 1 bolts or Grade F2280 assemblies.
1.8 This international standard was developed in accor-
1.2.4 Type 490–3—DTIs for use with Specification F3125
dance with internationally recognized principles on standard-
Grade A490 Type 3 bolts Grade F2280 Type 3 assemblies.
ization established in the Decision on Principles for the
1.2.5 Type 8.8-1—DTIs for use with Specification F3125 Development of International Standards, Guides and Recom-
Grade A325M Type 1 bolts.
mendations issued by the World Trade Organization Technical
1.2.6 Type 8.8-3—DTIs for use with Specification F3125 Barriers to Trade (TBT) Committee.
Grade A325M Type 3 bolts.
2. Referenced Documents
1.2.7 Type 10.9-1—DTIs for use with Specification F3125
2
2.1 ASTM Standards:
Grade A490M Type 1 bolts.
A325Specification for Structural Bolts, Steel, Heat Treated,
1.2.8 Type 10.9-3—DTIs for use with Specification F3125
120/105 ksi Minimum Tensile Strength (Withdrawn
Grade A490M Type 3 bolts.
3
2016)
1.3 DTIs are intended for installation with the protrusions
A325M Specification for Structural Bolts, Steel, Heat
against a hardened surface such as a bolt head, a hardened nut,
Treated 830 MPa Minimum Tensile Strength (Metric)
3
or a hardened washer. (See Research Council on Structural
(Withdrawn 2016)
Connections: Specification for Structural Joints Using High-
A490Specification for Structural Bolts, Alloy Steel, Heat
–Strength Bolts.)
Treated, 150 ksi Minimum Tensile Strength (Withdrawn
3
2016)
1.4 This specification provides for furnishing Type 3 DTIs
A490MSpecification for High-Strength Steel Bolts, Classes
to a Chemical Composition Requirement or a Corrosion
10.9 and 10.9.3, for Structural Steel Joints (Metric)
Resistance Index (CRI) at the manufacturer’s discretion.
3
(Withdrawn 2016)
1.5 Terms used in this specification are defined in Termi-
A1059Specification for ZincAlloyThermo-Diffusion Coat-
nology F1789 unless otherwise specified.
ings (TDC) on Steel Fasteners, Hardware, and Other
Products
1 2
This specification is under the jurisdiction of ASTM Committee F16 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Fasteners and is the direct responsibility of Subcommittee F16.06 on SteelWashers contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and Rivets. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 1, 2017. Published February 2018. Originally the ASTM website.
3
approved in 1985. Last previous edition approved in 2017 as F959–17. DOI: The last approved version of this historical standard is referenced on
10.1520/F0959-17A. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO
...
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: F959/F959M − 17 F959/F959M − 17a
Standard Specification for
Compressible-Washer-Type Direct Tension Indicators for
1
Use with Structural Fasteners, Inch and Metric Series
This standard is issued under the fixed designation F959/F959M; 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 compressible-washer-type direct tension indicators, (DTIs) capable of
indicating the achievement of a specified minimum tension in a structural bolting assembly.
1 1
1.2 Eight types of DTIs in nominal diameter sizes ⁄2 through 1 ⁄2 in. as well as M16 through M36 are covered:
1.2.1 Type 325-1—DTIs for use with Specification F3125 Grade A325 Type 1 bolts or Grade F1852 assemblies.
1.2.2 Type 325–3—DTIs for use with Specification F3125 Grade A325 Type 3 bolts or Grade F1852 Type 3 assemblies.
1.2.3 Type 490–1—DTIs for use with Specification F3125 Grade A490 Type 1 bolts or Grade F2280 assemblies.
1.2.4 Type 490–3—DTIs for use with Specification F3125 Grade A490 Type 3 bolts Grade F2280 Type 3 assemblies.
1.2.5 Type 8.8-1—DTIs for use with Specification F3125 Grade A325M Type 1 bolts.
1.2.6 Type 8.8-3—DTIs for use with Specification F3125 Grade A325M Type 3 bolts.
1.2.7 Type 10.9-1—DTIs for use with Specification F3125 Grade A490M Type 1 bolts.
1.2.8 Type 10.9-3—DTIs for use with Specification F3125 Grade A490M Type 3 bolts.
1.3 DTIs are intended for installation with the protrusions against a hardened surface such as a bolt head, a hardened nut, or
a hardened washer. (See Research Council on Structural Connections: Specification for Structural Joints Using High–Strength
Bolts.)
1.4 This specification provides for furnishing Type 3 DTIs to a Chemical Composition Requirement or a Corrosion Resistance
Index (CRI) at the manufacturer’s discretion.
1.5 Terms used in this specification are defined in Terminology F1789 unless otherwise specified.
1.6 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.
1.7 The following precautionary statement pertains only to the test method portions, Section 10 and Appendix X1 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 safety, health, and healthenvironmental practices and
determine the applicability of regulatory limitations prior to use.
1.8 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.
2. Referenced Documents
2
2.1 ASTM Standards:
3
A325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength (Withdrawn 2016)
3
A325M Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength (Metric) (Withdrawn 2016)
3
A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength (Withdrawn 2016)
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 April 15, 2017Dec. 1, 2017. Published May 2017February 2018. Originally approved in 1985. Last previous edition approved in 20152017 as
F959 – 15.F959 – 17. DOI: 10.1520/F0959-17.10.1520/F0959-17A.
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.
3
The last approved version of this historical standard is referenced on 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
...
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: F959/F959M − 17a
Standard Specification for
Compressible-Washer-Type Direct Tension Indicators for
1
Use with Structural Fasteners, Inch and Metric Series
This standard is issued under the fixed designation F959/F959M; 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* 1.6 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
1.1 This specification covers the requirements for
each system are not necessarily exact equivalents; therefore, to
compressible-washer-type direct tension indicators, (DTIs)
ensure conformance with the standard, each system shall be
capable of indicating the achievement of a specified minimum
used independently of the other, and values from the two
tension in a structural bolting assembly.
systems shall not be combined.
1
1.2 Eight types of DTIs in nominal diameter sizes ⁄2
1.7 The following precautionary statement pertains only to
1
through 1 ⁄2 in. as well as M16 through M36 are covered:
the test method portions, Section 10 and Appendix X1 of this
1.2.1 Type 325-1—DTIs for use with Specification F3125
specification: This standard does not purport to address all of
Grade A325 Type 1 bolts or Grade F1852 assemblies.
the safety concerns, if any, associated with its use. It is the
1.2.2 Type 325–3—DTIs for use with Specification F3125
responsibility of the user of this standard to establish appro-
Grade A325 Type 3 bolts or Grade F1852 Type 3 assemblies.
priate safety, health, and environmental practices and deter-
1.2.3 Type 490–1—DTIs for use with Specification F3125
mine the applicability of regulatory limitations prior to use.
Grade A490 Type 1 bolts or Grade F2280 assemblies.
1.8 This international standard was developed in accor-
1.2.4 Type 490–3—DTIs for use with Specification F3125
dance with internationally recognized principles on standard-
Grade A490 Type 3 bolts Grade F2280 Type 3 assemblies.
ization established in the Decision on Principles for the
1.2.5 Type 8.8-1—DTIs for use with Specification F3125
Development of International Standards, Guides and Recom-
Grade A325M Type 1 bolts. mendations issued by the World Trade Organization Technical
1.2.6 Type 8.8-3—DTIs for use with Specification F3125 Barriers to Trade (TBT) Committee.
Grade A325M Type 3 bolts.
2. Referenced Documents
1.2.7 Type 10.9-1—DTIs for use with Specification F3125
2
2.1 ASTM Standards:
Grade A490M Type 1 bolts.
A325 Specification for Structural Bolts, Steel, Heat Treated,
1.2.8 Type 10.9-3—DTIs for use with Specification F3125
120/105 ksi Minimum Tensile Strength (Withdrawn
Grade A490M Type 3 bolts.
3
2016)
1.3 DTIs are intended for installation with the protrusions
A325M Specification for Structural Bolts, Steel, Heat
against a hardened surface such as a bolt head, a hardened nut,
Treated 830 MPa Minimum Tensile Strength (Metric)
3
or a hardened washer. (See Research Council on Structural
(Withdrawn 2016)
Connections: Specification for Structural Joints Using High-
A490 Specification for Structural Bolts, Alloy Steel, Heat
–Strength Bolts.)
Treated, 150 ksi Minimum Tensile Strength (Withdrawn
3
2016)
1.4 This specification provides for furnishing Type 3 DTIs
A490M Specification for High-Strength Steel Bolts, Classes
to a Chemical Composition Requirement or a Corrosion
10.9 and 10.9.3, for Structural Steel Joints (Metric)
Resistance Index (CRI) at the manufacturer’s discretion.
3
(Withdrawn 2016)
1.5 Terms used in this specification are defined in Termi-
A1059 Specification for Zinc Alloy Thermo-Diffusion Coat-
nology F1789 unless otherwise specified.
ings (TDC) on Steel Fasteners, Hardware, and Other
Products
1 2
This specification is under the jurisdiction of ASTM Committee F16 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Fasteners and is the direct responsibility of Subcommittee F16.06 on Steel Washers contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and Rivets. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 1, 2017. Published February 2018. Originally the ASTM website.
3
approved in 1985. Last previous edition approved in 2017 as F959 – 17. DOI: The last approved version of this historical standard is referenced on
10.1520/F0959-17A. 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 ----------------------
F9
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.