DIN 936 hexagon nut, M16, left-hand thread, Article number 936L16. Property class / material: steel class 4, surface finish plain. Hexagon Nut manufactured to DIN 936 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.