SS-EN-ISO-16047 Fasteners - Torque/clamp force testing (ISO 16047:2005)


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Included in this current edition are the following subparts:

 2005 EDITION - Feb. 18, 2005
 2005/A1:2012 EDITION AMENDMENT - Sept. 26, 2012

This International Standard specifies the conditions for carrying out torque/clamp force tests on threaded fasteners and related parts. It is applicable, basically, to bolts, screws, studs and nuts made of carbon steel and alloy steel, whose mechanical properties are specified in ISO 898-1, ISO 898-2 or ISO 898-6, having ISO metric threads with thread sizes M3 to M39. It is also applicable to the combination of other externally and internally threaded fasteners with a triangular ISO thread according to ISO 68-1. It is not applicable to set screws and similar threaded fasteners that are not under tensile stresses, nor to screws which form their own mating thread or threaded fasteners having additional self-locking features. Unless otherwise agreed, the tests are carried out at room temperature. However, tests carried out under standard conditions are made at a temperature of 10 °C to 35 °C. This method allows determination of the tightening characteristics of threaded fasteners and related parts.

To find similar documents by classification:

21.060.01 (Fasteners in general)

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Designation Name

SS-EN ISO 16047:2005

Revision Level




Publication Date

Feb. 18, 2005



Page Count


International Equivalent

EN ISO 16047:2005(IDT); ISO 16047:2005(IDT)