Standard: DIN7971, ISO1481, DIN7972, ISO1482, DIN7973, ISO1483, DIN7981,
DINISO7049, DIN7982, ISO7050, DIN7983, ISO7051, DIN7976, DIN7976, ISO1479, DIN7504-N, DIN7504-P, DIN7504-K

Finish: Plain, Zinc plating, Black, Cr3+, Cr6+