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Significance and Use
5.1 This test method provides reasonably accurate information with regard to the determination of the securing or locking effect of adhesives used in threaded fasteners. This test method may also be used to determine the degree of cure and the effect of environment on torque strength.
5.2 The accuracy of the test results depends to a large degree on the thread clearance of the test fasteners and the inclusion of air bubbles in the bond line. Data generated by this test method should be safety-factored accordingly if used as quality assurance acceptance or rejection.
1.1 This test method is used to make comparative assessments of the securing or locking effect of adhesives used in threaded assemblies.
1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D907 Terminology of Adhesives
D2651 Guide for Preparation of Metal Surfaces for Adhesive Bonding
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 21.060.01 (Fasteners in general); 83.180 (Adhesives)
UNSPSC Code 44122119(Self adhesive fasteners)
ASTM D5649-15, Standard Test Method for Torque Strength of Adhesives Used on Threaded Fasteners, ASTM International, West Conshohocken, PA, 2015, www.astm.orgBack to Top