EN 27721 : 1991
Current
Current
The latest, up-to-date edition.
Countersunk head screws - Head configuration and gauging (ISO 7721:1983)
Published date
16-10-1991
Publisher
Foreword
1 Scope and field of application
2 Head configuration
3 Gauging method
Annex Calculation basis for the maximum head diameter
of countersunk heads for screws
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