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NF EN ISO 16047 : 2005 AMD 1 2013

Current

Current

The latest, up-to-date edition.

FASTENERS - TORQUE/CLAMP FORCE TESTING

Published date

12-01-2013

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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and their designations
5 Principle of test
   5.1 General
   5.2 Determination of coefficients of friction
   5.3 Determination of torque coefficient K (K-factor)
   5.4 Determination of ratio T/F
6 Apparatus
   6.1 Testing machine
   6.2 Test fixture
7 Test parts
   7.1 General
   7.2 Test-bearing plates or test washers
   7.3 Test nuts for testing bolts, screws and studs
   7.4 Test bolts or test screws for testing nuts
8 Testing under standard conditions
9 Testing under specific conditions
10 Evaluation of results
   10.1 Determination of torque coefficient K
   10.2 Determination of coefficient of total friction micro[tot]
   10.3 Determination of coefficient of friction between threads
        micro[th]
   10.4 Determination of coefficient of friction between bearing
        surfaces micro[b]
   10.5 Determination of yield clamp force F[y]
   10.6 Determination of yield tightening torque T[y]
   10.7 Determination of ultimate clamp force F[u]
   10.8 Determination of ultimate tightening torque T[u]
11 Test report
   11.1 General
   11.2 Description of fasteners to be tested
   11.3 Description of test parts
   11.4 Testing machine
   11.5 Test fixture
   11.6 Environmental conditions
   11.7 Specific conditions
   11.8 Test results
Bibliography

Provides the conditions for carrying out torque/clamp force tests on threaded fasteners and related parts.

DevelopmentNote
Indice de classement: E25-036 PR NF EN ISO 16047 February 2004 (02/2004)
DocumentType
Standard
PublisherName
Association Francaise de Normalisation
Status
Current

NFE 25 030-1 : 2014 FASTENERS - THREADED CONNECTIONS WITH ISO METRIC THREAD - PART 1: DESIGN RULES FOR TENSILE LOADED BOLTED JOINTS - SIMPLIFIED PROCEDURE - FIXATIONS
NFE 25 005 : 2005 FASTENERS - TEST METHODS
NFE 25 039 : 2013 FIXATIONS - ESSAIS DE COUPLE/TENSION POUR LES VIS, ECROUS ET ECROUS AUTOFREINES - COMPLEMENTS AUX NORMES NF EN ISO 16047 ET NF EN ISO 2320

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NF EN ISO 898-6 : 1996 MECHANICAL PROPERTIES OF FASTENERS - PART 6: NUTS WITH SPECIFIED PROOF LOAD VALUES - FINE PITCH THREAD
NF EN ISO 7093-1 : 2000 PLAIN WASHERS - LARGE SERIES - PART 1: PRODUCT GRADE A
NF ISO 68-1 : 1999 ISO GENERAL PURPOSE SCREW THREADS - BASIC PROFILE - PART 1: METRIC SCREW THREADS
NF EN ISO 4762 : 2004 HEXAGON SOCKET HEAD CAP SCREWS
NF EN 1662 : 1998 HEXAGON BOLTS WITH FLANGE - SMALL SERIES
NF EN ISO 8674 : 2013 HEXAGON HIGH NUTS (STYLE 2) WITH METRIC FINE PITCH THREAD - PRODUCT GRADES A AND B
NF EN 20898-2 : 1994 MECHANICAL PROPERTIES OF FASTENERS - PART 2: NUTS WITH SPECIFIED PROOF LOAD VALUES - COARSE THREAD
NF EN ISO 4017 : 2014 FASTENERS - HEXAGON HEAD SCREWS - PRODUCT GRADES A AND B
NF EN 14219 : 2003 HEXAGON BOLTS WITH FLANGE WITH METRIC FINE PITCH THREAD - SMALL SERIES
NF EN ISO 4014 : 2011 HEXAGON HEAD BOLTS - PRODUCT GRADES A AND B
NF EN ISO 898-1 : 2013 MECHANICAL PROPERTIES OF FASTENERS MADE OF CARBON STEEL AND ALLOY STEEL - PART 1: BOLTS, SCREWS AND STUDS WITH SPECIFIED PROPERTY CLASSES - COARSE THREAD AND FINE PITCH THREAD
NF EN ISO 4033 : 2013 HEXAGON HIGH NUTS (STYLE 2) - PRODUCT GRADES A AND B
NF EN ISO 8673 : 2001 HEXAGON NUTS, STYLE 1, WITH METRIC FINE PITCH THREAD - PRODUCT GRADES A AND B
NF EN ISO 4759-3 : 2016 TOLERANCES FOR FASTENERS - PART 3: WASHERS FOR BOLTS, SCREWS AND NUTS - PRODUCT GRADES A, C AND F
NF EN 10002-1 : 2001 METALLIC MATERIALS - TENSILE TESTING - PART 1: METHOD OF TEST AT AMBIENT TEMPERATURE
NF EN ISO 8765 : 2011 HEXAGON HEAD BOLTS WITH METRIC FINE PITCH THREAD - PRODUCT GRADES A AND B

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