DIN 980
DIN 980 All-Metal Prevailing Torque Nuts: Dimensions and Property Classes
DIN 980 is a German national standard specifying dimensions and mechanical properties for all-metal prevailing torque hexagon nuts. Engineering drawings commonly reference the standard as "DIN 980V." ISO 7042 formally supersedes DIN 980, though DIN 980 remains widely referenced on legacy drawings for machinery and automotive assemblies manufactured before the transition to ISO standards.
Trojan Special Fasteners manufactures all-metal prevailing torque nuts to DIN 980 dimensional requirements from its Birmingham, UK facility. Manufacturing is available from single prototype quantities with no minimum order quantity.
The table below sets out DIN 980 dimensional and property class data.