I.S. EN 493:1993
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
FASTENERS - SURFACE DISCONTINUITIES - NUTS
Hardcopy , PDF
29-09-2004
English
01-01-1993
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
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Foreword
1 Scope
2 Normative references
3 Types, causes, appearance and limits of surface
discontinuities
4 Inspection and evaluation procedure
Annex A (normative) Widening test on nuts
Annex B (normative) Cone proof load test on nuts
Sets limits for various types of surface discontinuities on nuts with: - nominal thread diameters from 5 up to and including 39 mm; - product grade A and B; - all property classes according to EN 20898-6 and IS0 2320 unless otherwise specified in product standards or by the purchaser.
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| NS EN 493 : 1ED 1992 | Identical |
| NEN EN 493 : 1993 | Identical |
| NF EN 493 : 1992 | Identical |
| NBN EN 493 : 1992 | Identical |
| UNI EN 493 : 1993 | Identical |
| EN 493 : 1992 | Identical |
| DIN EN 493:1992-07 | Identical |
| BS EN 493:1992 | Identical |
| ISO 2320:2015 | Fasteners Prevailing torque steel nuts Functional properties |
| EN 20898-2 : 1993 | MECHANICAL PROPERTIES OF FASTENERS - PART 2: NUTS WITH SPECIFIED PROOF LOAD VALUES - COARSE THREAD (ISO 898-2:1992) |
| ISO 898-6:1994 | Mechanical properties of fasteners Part 6: Nuts with specified proof load values Fine pitch thread |
| ISO 468:1982 | Surface roughness — Parameters, their values and general rules for specifying requirements |
| ISO 3269:2000 | Fasteners Acceptance inspection |
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