Toolcraft knurled nuts din 467 grade 5 galvanized steel packs of 10 toolcraft din 467 5 zn these packs of grade 5 m3 knurled nuts from toolcraft have been manufactured with galvanised steel and designed with a lower shape the outside rim has a slightly ribbed edge toolcraft din 467 5 zn knurled nuts grade 5 galvanized steel m3 pk 10