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ASTM F959M-07

Historical Revision

Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use With Structural Fasteners (Metric) (Withdrawn 2016)

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1.1 This specification covers the requirements for compressible-washer-type direct tension indicators capable of indicating the achievement of a specified minimum bolt tension in a structural bolt.

1.2 Two types of direct tension indicators in nominal diameter sizes M16 through M36 are covered:

1.2.1 Type 8.8direct tension indicators for use with Specification A 325M bolts, and

1.2.2 Type 10.9direct tension indicators for use with Specification A 490M bolts.

1.3 Direct tension indicators are intended for installation under either a bolt head or a hardened washer. (See Research Council on Structural Connections: Specification for Structural Joints Using ASTM A 325 or A 490 Bolts.)

1.4 The following precautionary statement pertains only to the test methods portions, Section 12, 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 and health practices and determine the applicability of regulatory limitations prior to use.

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.


SDO ASTM: ASTM International
Document Number F959
Publication Date Dec. 1, 2007
Language en - English
Page Count 5
Revision Level 07
Supercedes
Committee F16.02
Publish Date Document Id Type View
March 1, 2013 F0959M-13 Revision
Dec. 1, 2007 F0959M-07 Revision
Nov. 1, 2006 F0959M-06 Revision
Aug. 1, 2004 F0959M-04 Revision
April 10, 2002 F0959M-99A Revision
April 10, 2002 F0959M-02 Revision
April 10, 2002 F0959M-01A Revision
April 10, 2002 F0959M-01 Revision