Přesné šrouby se šestihrannou hlavou s pojistným otvorem.
STANDARD published on 1.9.1970
Designation standards: ČSN 021104:1961/b
Classification mark: 021104
Catalog number: 11828
Note: Change
Publication date standards: 1.9.1970
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN