Lock nuts (prevailing torque)

12 standards. ISO editions are listed first; each shows the DIN numbers it replaced, so a search for a DIN number lands on the right table.

ISOTitleSizesDataReplaces

ISO 7040Prevailing torque hexagon regular nuts with non-metallic insert—No tableDIN 982 DIN 6924

ISO 7042Prevailing torque all-metal hexagon high nuts—No tableDIN 980 DIN 6925

ISO 10511Prevailing torque hexagon thin nuts with non-metallic insert—No tableDIN 985

DIN only — no ISO successor in this product type

DINTitleSizesDataStatus

DIN 981Slotted lock nuts for rolling bearings (KM)M10x0.75 – M140x229 sizes · DraftCurrent

DIN 6926Prevailing torque hexagon flange nuts with non-metallic insertM5 – M208 sizes · DraftReplaced → ISO 1993

DIN 6927Prevailing torque all-metal hexagon flange nutsM5 – M208 sizes · DraftReplaced → EN 1664

DIN 7967Self-locking counter nuts (PAL nuts)M4 – M5221 sizes · DraftStatus unclear