ASTM D5648-94
(Test Method)Standard Test Method for Torque-Tension Relationship of Adhesives Used on Threaded Fasteners (Lubricity)
Standard Test Method for Torque-Tension Relationship of Adhesives Used on Threaded Fasteners (Lubricity)
SCOPE
1.1 This test method covers the determination of the torque-tension relationship (lubricity) of adhesives used for locking and sealing threaded fasteners.
1.2 The values stated in inch-pounds are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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
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Standards Content (Sample)
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Designation: D 5648 – 94
Standard Test Method for
Torque-Tension Relationship of Adhesives Used on
Threaded Fasteners (Lubricity)
This standard is issued under the fixed designation D 5648; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope specified range of torque has been applied or the torque
required to develop a specified range of tension. This test
1.1 This test method covers the determination of the torque-
method is used to determine the effect of using adhesives on
tension relationship (lubricity) of adhesives used for locking
the torque-tension relationship of threaded fasteners.
and sealing threaded fasteners.
5.2 Accurate torque-tension relationships may be measured
1.2 This standard does not purport to address all of the
only by defining and controlling the many related test param-
safety concerns, if any, associated with its use. It is the
eters.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 Tension-Measuring Device, capable of measuring the
2. Referenced Documents axial tension induced in the bolt as it is tightened. This device
shall be accurate within 65 % of the test load.
2.1 ASTM Standards:
6.2 Torque-Measuring Device, of suitable capacity having
D 907 Terminology of Adhesives
an accuracy within 65 % of a given torque reading.
2.2 Society of Automotive Engineers Standards:
SAE J174 Torque Tension Test Procedure for Steel
7. Test Specimens
Threaded Fasteners
7.1 Bolts—As-received, phosphate-and-oil-treated, ⁄8-in.
SAE J429 Mechanical and Material Requirements for Ex-
size, 16 threads per inch, Unified National Coarse thread series
ternally Threaded Fasteners
( ⁄8 by 16 UNC), Grade 5 bolts in accordance with SAE J429.
2.3 Federal Specification:
The bolts shall have a minimum length of 1 ⁄2 in. (38.1 mm)
FF-N-836 Nut: Square, Hexagon, Cap, Slotted, Castle,
4 with hexagonal head.
Knurled, Welding and Single Ball Seat
7.2 Steel Nuts—As-received, Type II, Style 4, nominally
3. Terminology ⁄64 in. (8.3 mm) thick, conforming to Fed. Spec. FF-N-836.
3.1 Definitions—Many of the terms in this test method are
NOTE 1—Other fastener sizes and substrates may be used upon agree-
defined in Terminology D 907. ment between the supplier and the user of adhesives.
7.3 Hardened Washers, conforming to the dimensional,
4. Summary of Test Method
metallurgical, mechanical, and finish requirements given in
4.1 This test method consists of applying adhesive to a
Table 1 of SAE J174.
threaded fastener and measuring the developed tension applied
to the fastener at specified torques. Alternatively, the torque
8. Procedure
required to reach specified levels of bolt tension may be
8.1 Determine the torque-tension relationship on not less
measured.
than five specimens as follows:
8.1.1 For liquid adhesives, insert the bolt in the tension-
5. Significance and Use
measuring device and apply the adhesive to the exposed
5.1 On some applications of threaded fasteners, it is desir-
threads of the bolt. Also apply the adhesive to the threads of the
able to control either the amount of developed t
...
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