You find most of types nut from here eg DIN 934 Hex nut din 985 Nylon nut DIN 6293 Flange nut made of Stainless stee 304 and 316
You find most of types nut from here eg DIN 934 Hex nut din 985 Nylon nut DIN 6293 Flange nut made of Stainless stee 304 and 316