DS DS/EN 14831 Fasteners - Tightening performance - Torque/Angle simplified test method
 |
| Purchase Information |
| Use this form to request purchase information on DS online subscriptions. |
|
|
Document DS DS/EN 14831 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
You may also purchase this document alone from the IHS Standards Store.
DS DS/EN 14831 Document Information:
Title
Fasteners - Tightening performance - Torque/Angle simplified test method
Befæstelseselementer - Tilspændingsegenskaber - Forenklet prøvningsmetode for tilspændingsmoment
Dansk Standard
Publication Date:
May 26, 2005
Scope:
This document specifies a test method for fasteners with ISO metric thread from M6 to M16 and with property classes 8.8 to 12.9 for bolts and screws and with property classes 8 to 12 for nuts, to check their tightening performance in the elastic range.
It applies to steel fasteners with an ISO metric thread according to ISO 68-1.
It applies to fasteners having a friction coefficient from 0,06 up to and including 0,18. For higher values of friction coefficients, the dispersion of test results increases and the test method should not be applied. For lower values friction of coefficients, which are for very specific applications and require special lubrication, this standard does not apply.
This comparative test method can be used to monitor stability of a production process (such as coating, lubrication, shot-blasting) or to compare various production manufacturing lots. It can also be used to detect fasteners, which are out of specification.
NOTE This simplified test method has been developed to avoid systematic use of more complex procedures.
In case of dispute the torque/tension test method according to EN ISO 16047 is the referee test.
This standard does not apply for assessment of fasteners in actual assembly conditions; it does not allow the measurement of operating friction coefficients.
Keywords:
- ANGLE OF ROTATION
- COEFFICIENT OF FRICTION
- DEFINITION
- DEFINITIONS
- EXAMINATION (QUALITY ASSURANCE)
- FASTENERS
- ISO METRIC THREADS
- NUTS
- SCREWS (BOLTS)
- STEELS
- TESTING
- TIGHTENING FORCES
- TORQUE
- NUTS : FASTENERS
- SCREWS
- EXAMINATION
About IHS
IHS (NYSE: IHS) is a leading global provider of critical technical information, decision-support tools and related services in a number of industries including aerospace and defense, automotive, construction, electronics, and energy. IHS serves customers ranging from large governments and multinational corporations to smaller companies and technical professionals in more than 100 countries. IHS been in business for more than 45 years and employ more than 2,300 people around the world.
