Immaculata ferrum (countersunk / plana caput) nuces infige;Caput calculi / clavum capitis plani traho;Hexagon nux / fulmine) quid est vexillum nationale numerus?

Caput hexagonum countersunk nervum: GB70.3 DIN7991

Apertum caput rotundum clavum traho: GB12618

Hexagon nut: GB6170 DIN934

Exagonum externum fulmen stamen plenum: GB5783 DIN933

Rivet nut: GB17880.1