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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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MECHANICAL PROPERTIES OF FASTENERS - NUTS WITH SPECIFIED PROOF LOAD VALUES - FINE PITCH THREAD
01-11-1995
12-01-2013
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
Specifies the mechanical properties of nuts with specified proof load values. Coverage includes designation system, materials, proof load values and marking. Also includes tables and diagrams.
| Committee |
CEN/TC 185
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| UNI EN 20898-6 : 1994 | Identical |
| UNE-EN 20898-6:1993 | Identical |
| NF EN 20898-6 : 1992 | Identical |
| NBN EN 20898-6 : 1992 | Identical |
| NEN ISO 898-6 : 1993 | Identical |
| BS EN 20898-6:1992 | Identical |
| ISO 898-6:1994 | Identical |
| I.S. EN 20898-6:1993 | Identical |
| DIN EN 20898-6:1992-10 | Identical |
| ISO 272:1982 | Fasteners — Hexagon products — Widths across flats |
| ISO 6507-1:2005 | Metallic materials Vickers hardness test Part 1: Test method |
| ISO 724:1993 | ISO general-purpose metric screw threads — Basic dimensions |
| ISO 965-2:1998 | ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general purpose external and internal screw threads — Medium quality |
| ISO 262:1998 | ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts |
| ISO 68:1973 | ISO general purpose screw threads Basic profile |
| ISO 286-1:2010 | Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits |
| ISO 6506:1981 | Metallic materials — Hardness test — Brinell test |
| ISO 6508:1986 | Metallic materials Hardness test Rockwell test (scales A - B - C - D - E - F - G - H - K) |
| ISO 6157-2:1995 | Fasteners Surface discontinuities Part 2: Nuts |
| ISO 965-1:2013 | ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data |
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