ASTM F2482-08

Standard Specification for Load-Indicating Externally Threaded Fasteners

ABSTRACT
This specification covers externally threaded bolts, studs, and cap screws called fasteners, capable of indicating clamping forces up to yield strength during the tightening process or post installation residual tension, or both. Load-indicating fasteners utilize mechanical, electronic, or ultrasonic means to indicate fastener tension. These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service. This specification covers the following four different types of load-indicating fasteners: mechanical dial type (MT); electronic type (ET); strain gauge type (ST); and ultrasonic type (UT). Tension test shall be performed to conform to the chemical and mechanical requirements specified.
SCOPE
1.1 This specification covers externally threaded bolts, studs, and cap screws as defined in Table 1, herein called fasteners, capable of indicating clamping forces up to yield strength during the tightening process or post installation residual tension, or both. Load-indicating fasteners utilize mechanical, electronic, or ultrasonic means to indicate fastener tension.
1.2 This specification covers bolt diameters ¼ to 7 in. inclusive.
1.3 These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service.
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 The following precautionary statement pertains only to the test method portion, Section 11, of the 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-Oct-2008
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM F2482-05 - Standard Specification for Load-Indicating Externally Threaded Fasteners
• Effective Date: 01-Nov-2008
• Referred By: ASTM F1789-22 - Standard Terminology for F16 Mechanical Fasteners
• Effective Date: 01-Nov-2008

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F2482 −08
StandardSpecification for
1
Load-Indicating Externally Threaded Fasteners
This standard is issued under the fixed designation F2482; 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* A449Specification for Hex Cap Screws, Bolts and Studs,
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile
1.1 This specification covers externally threaded bolts,
Strength, General Use
studs, and cap screws as defined in Table 1, herein called
A490Specification for Structural Bolts, Alloy Steel, Heat
fasteners, capable of indicating clamping forces up to yield
Treated, 150 ksi Minimum Tensile Strength
strength during the tightening process or post installation
E4Practices for Force Verification of Testing Machines
residual tension, or both. Load-indicating fasteners utilize
E1685Practice for Measuring the Change in Length of
mechanical,electronic,orultrasonicmeanstoindicatefastener
Fasteners Using the Ultrasonic Pulse-Echo Technique
tension.
F1470Practice for Fastener Sampling for Specified Me-
1
1.2 This specification covers bolt diameters ⁄4 to 7 in.
chanical Properties and Performance Inspection
inclusive.
F1789Terminology for F16 Mechanical Fasteners
1.3 These fasteners provide a means to verify the desired
clamp load in critical applications upon installation and in 3. Terminology
service.
3.1 Terms used in this specification are defined in Termi-
1.4 Thevaluesstatedininch-poundunitsaretoberegarded nology F1789, unless otherwise specified herein.
asstandard.Nootherunitsofmeasurementareincludedinthis
3.2 Definitions:
standard.
3.2.1 calibration of accuracy lot—lot shall consist of all
1.5 The following precautionary statement pertains only to load-indicating fasteners processed essentially together
the test method portion, Section 11, of the specification: This
through all operations to the shipping container that are of the
standard does not purport to address all of the safety concerns, same nominal size, the same nominal length, and
if any, associated with its use. It is the responsibility of the user
manufactured/calibrated from the same mill heat of steel. This
of this standard to establish appropriate safety and health lotisusedforthepurposeofassigninganidentificationnumber
practices and determine the applicability of regulatory limita-
and from which calibrated samples shall be selected.
tions prior to use.
3.2.2 load-indicating fastener—externally threaded fastener
equipped with a load indicating device capable of measuring
2. Referenced Documents
fastener tension during the tightening process or residual
2
2.1 ASTM Standards:
tension after tightening, or both.
A193/A193MSpecification for Alloy-Steel and Stainless
Steel Bolting for High Temperature or High Pressure
4. Classification
Service and Other Special Purpose Applications
4.1 This specification covers the following four different
A325Specification for Structural Bolts, Steel, Heat Treated,
types of load-indicating fasteners:
120/105 ksi Minimum Tensile Strength
4.1.1 Mechanical Dial Type (MT)—This type of fastener
A354Specification for Quenched and TemperedAlloy Steel
incorporatesadialontheheadoftheboltorendofthestudthat
Bolts, Studs, and Other Externally Threaded Fasteners
continuously displays the tension in the fastener.
4.1.2 Electronic Type (ET)—This type of fastener employs
1
This specification is under the jurisdiction of ASTM Committee F16 on
an electronic measuring device attached to the head or end to
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
obtain readings indicating the tension in the fastener.
Nuts, Rivets and Washers.
4.1.3 Strain Gauge Type (ST)—This type of fastener incor-
Current edition approved Nov. 1, 2008. Published December 2008. Originally
porates a bonded device wired in a wheatstone bridge configu-
approved in 2005. Last previous edition approved in 2005 as F2482–05 DOI:
10.1520/F2482-08.
ration which, through changes in relative resistance, reports
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
tension in the fastener.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1.4 Ultrasonic Type (UT)—This type of fastener incorpo-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. rates an acoustic coupling device using pulse-echo technique
*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 ----------------------
F2482−08
...

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:F2482–05 Designation: F 2482 – 08
Standard Specification for
1
Load-Indicating Externally Threaded Fasteners
This standard is issued under the fixed designation F 2482; 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 externally threaded bolts, studs, and cap screws as defined in Table 1, herein called fasteners,
capable of indicating clamping forces up to yield strength during the tightening process or post installation residual tension, or
both. Load-indicating fasteners utilize mechanical, electronic, or ultrasonic means to indicate fastener tension.
1
1.2 This specification covers bolt diameters ⁄4 to 7 in. inclusive.
1.3 These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service.
1.4
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
1.5 The following precautionary statement pertains only to the test method portion, Section 11, of the 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A 193/A 193M Specification forAlloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service Specification
for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special
Purpose Applications
A 325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
A 354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A 449 Specification for Quenched and Tempered Steel Bolts and Studs Specification for Hex Cap Screws, Bolts and Studs,
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use
A 490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
E4 Practices for Force Verification of Testing Machines
E 1685 Practice for Measuring the Change in Length of Fasteners Using the Ultrasonic Pulse-Echo Technique
F 1470 Guide for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F 1789 Terminology for F16 Mechanical Fasteners
3. Terminology
3.1 Terms used in this specification are defined in Terminology F 1789, unless otherwise specified herein.
3.2 Definitions:
3.2.1 calibration of accuracy lot—lot shall consist of all load-indicating fasteners processed essentially together through all
operations to the shipping container that are of the same nominal size, the same nominal length, and manufactured/calibrated from
thesamemillheatofsteel.Thislotisusedforthepurposeofassigninganidentificationnumberandfromwhichcalibratedsamples
shall be selected.
3.2.2 load-indicating fastener—externally threaded fastener equipped with a load indicating device capable of measuring
fastener tension during the tightening process or residual tension after tightening, or both.
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.
Current edition approved Dec. 1, 2005. Published December 2005.
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.
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 2005. Last previous edition approved in 2005 as F2482–05
2
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 ----------------------
F2482–08
TABLE 1 Grades and Classification
Load-Indicating Fa
...

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:F2482–05 Designation: F 2482 – 08
Standard Specification for
1
Load-Indicating Externally Threaded Fasteners
This standard is issued under the fixed designation F 2482; 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 externally threaded bolts, studs, and cap screws as defined in Table 1, herein called fasteners,
capable of indicating clamping forces up to yield strength during the tightening process or post installation residual tension, or
both. Load-indicating fasteners utilize mechanical, electronic, or ultrasonic means to indicate fastener tension.
1
1.2 This specification covers bolt diameters ⁄4 to 7 in. inclusive.
1.3 These fasteners provide a means to verify the desired clamp load in critical applications upon installation and in service.
1.4
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
1.5 The following precautionary statement pertains only to the test method portion, Section 11, of the 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.
2. Referenced Documents
2
2.1 ASTM Standards:
A 193/A 193M Specification forAlloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service Specification
for Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure Service and Other Special
Purpose Applications
A 325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
A 354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A 449 Specification for Quenched and Tempered Steel Bolts and Studs Specification for Hex Cap Screws, Bolts and Studs,
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use
A 490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
E4 Practices for Force Verification of Testing Machines
E 1685 Practice for Measuring the Change in Length of Fasteners Using the Ultrasonic Pulse-Echo Technique
F 1470 GuidePractice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F 1789 Terminology for F16 Mechanical Fasteners
3. Terminology
3.1 Terms used in this specification are defined in Terminology F 1789, unless otherwise specified herein.
3.2 Definitions:
3.2.1 calibration of accuracy lot—lot shall consist of all load-indicating fasteners processed essentially together through all
operations to the shipping container that are of the same nominal size, the same nominal length, and manufactured/calibrated from
thesamemillheatofsteel.Thislotisusedforthepurposeofassigninganidentificationnumberandfromwhichcalibratedsamples
shall be selected.
3.2.2 load-indicating fastener—externally threaded fastener equipped with a load indicating device capable of measuring
fastener tension during the tightening process or residual tension after tightening, or both.
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.
Current edition approved Dec. 1, 2005. Published December 2005.
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.
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 2005. Last previous edition approved in 2005 as F2482–05
2
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 ----------------------
F2482–08
TABLE 1 Grades and Classification
Load-Indic
...