NA 131
DIN Standards Committee Aerospace
Standards
[CURRENT]
EN 4609
EN 4609
Aerospace series - Spiral drive recesses for threaded fasteners - Geometrical definition and technical requirements
Title (German)
Luft- und Raumfahrt - Spiral-Innenantrieb für Schrauben - Definition der Geometrie und Technische Anforderungen
Responsible national committee
NA 131-03-01 AA - Aerospace fasteners