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ČSN EN 27721 (021022)
Fasteners. Couter head screws. Head configuration and gauging (ISO 7721:1983)
STANDARD published on 1.3.1996
The information about the standard:
Designation standards: ČSN EN 27721
Classification mark: 021022
Catalog number: 18620
Publication date standards: 1.3.1996
SKU: NS-150382
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN 27721 (021022):
Norma obsahuje ustanovení o tvaru zápustných hlav šroubů s přímou a křížovou drážkou s metrickým závitem od M1,6 do M20 a se závitem pro šrouby do plechu od ST2,2 do ST9,5.
Norma udává tvar a rozměry zápustné hlavy a kontrolu zápustné hlavy kalibrem.
Příloha uvádí základ výpočtu maximálního průměru hlavy šroubu.
Preview of the standard ČSN EN 27721 (021022)
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