
Aerospace series. External spiral drive heads for threaded fasteners. Geometrical definition and fastener head wrenching configuration.
NORMA vydána dne 13.6.2019
Designation standards: BS EN 4852:2019
Publication date standards: 13.6.2019
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: British technical standard
Kategorie: Technické normy BS
ISBN: 978 0 539 01695 6 Status: Definitive