EN 20898-6 : 1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
MECHANICAL PROPERTIES OF FASTENERS - NUTS WITH SPECIFIED PROOF LOAD VALUES - FINE PITCH THREAD
11-01-1995
01-12-2013
Cooperating organizations
National foreword
Foreword
1. Scope and field of application
2. References
3. Designation system
4. Materials
5. Mechanical properties
6. Proof load values
7. Failure loads for nuts with nominal height of 0,5 D
and < 0,8 D
8. Test methods
9. Marking
Tables
1. Designation system for nuts with nominal heights
>/= 0,8 D
2. Designation system and stresses under proof load for
nuts with nominal heights >/= 0,5 D < 0,8 D
3. Limits of chemical composition
4. Mechanical properties
5. Proof load values
6. Minimum stripping strength of nuts in % of the
proofing load of bolts
7. Marking symbols for nuts with property classes
according to 3.1
8. Marking for nuts with property classes according to
3.2
Figures
1. Axial tensile test
2. Axial compressive test
3. Examples of marking with designation symbol
4. Examples of marking with code symbol (clock-face
system)
5. Left-hand thread marking
6. Alternative left-hand thread marking
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
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