EN 20898-7:1995
Current
Mechanical properties of fasteners - Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm (ISO 898-7:1992)
01-10-1995
Foreword
1 Scope
2 Normative reference
3 Torsional test
4 Minimum breaking torques
5 Evaluation of the torque test
Annex A (informative) - Explanatory note
Annex ZA (normative) - Normative references to international
publications with their relevant European
publications
Applies to bolts and screws of property classes 8.8 to 12.9 in accordance with ISO 898-1 with thread less than M3 for which no breaking and proof loads are indicated in ISO 898-1, as well as to short bolts and screws with nominal diameters 3 mm to 10 mm which cannot be subjected to a tensile test. The minimum breaking torques are not valid for hexagon socket set screws.
| Committee |
CEN/TC 185
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| DIN EN 20898-7:1995-04 | Identical |
| NF EN 20898-7 : 1995 | Identical |
| ISO 898-7:1992 | Identical |
| BS EN 20898-7:1995 | Identical |
| NBN EN 20898-7 : 1995 | Identical |
| NEN ISO 898-7 : 1995 | Identical |
| I.S. EN 20898-7:1995 | Identical |
| PN EN 20898-7 : 1997 | Identical |
| UNE-EN 20898-7:1996 | Identical |