ISO 4032 A4 stainless steel hex nuts are used for metric bolted joints where high corrosion resistance and reliable fastening are important. ISO 4032 specifies regular hexagon nuts and is a widely used standard for machinery, industrial equipment and engineering applications. The range includes ISO 4032 hex nuts in A4 stainless steel with standard metric threads in multiple sizes. The combination of standardized dimensions and A4 stainless steel makes these nuts suitable for machinery, equipment and structures where fasteners are exposed to more demanding corrosive environments.