ISO 4032 hexagon nut, M16, gleitmo 605 lubricated, Article number 40321016ZNTW605. Property class / material: steel class 10, surface finish zinc-nickel, silver. Hexagon Nut manufactured to ISO 4032 with ISO metric (M) thread, coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.