RVS (fersinken / platte kop) klinknagelmoeren;Countersunk holle / platte holle pull nagel;Hexagon moer / bout) - wat is it nasjonale standertnûmer?

Countersunk holle hexagon socket: GB70.3 DIN7991

Iepen rûne holle pull spiker: GB12618

Hexagon moer: GB6170 DIN934

Eksterne hexagon folsleine thread bout: GB5783 DIN933

Klinknagelmoer: GB17880.1