DIN 934 A4 stainless steel hex nuts with zinc coating are used in metric bolted joints where high corrosion resistance is combined with a reduced risk of galling between stainless steel threaded components. During tightening, stainless steel threads can be susceptible to galling, where the mating surfaces begin to adhere and can eventually cause the threaded joint to seize. The zinc coating provides a separating surface between the threaded components, helping to reduce friction and the risk of galling during assembly. The range includes DIN 934 A4 ZN hex nuts with standard metric threads for industrial and engineering applications.