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  The changes in dimensions caused by the changes in the standards are shown below. For the sake of clarity, the changed values are emphasized. All data in mm.  New key sizes for
DIN 439, 557, 562, 917, 931, 933, 934, 935, 979, 980, 982, 985, 986, 1587, 6330, 6331, 6923 ISO 4014, 4017, 4032, 4035, 4161, 7040, 7042, 8673, 8675, 10511 EN 1661
 "e"-corner
The changed key sizes means that the corner width "e" has also changed
 Nut height changes
Heagon thin nuts (regular thread ) DIN 439 - ISO 4035:no alterations
Hexagon nuts DIN 934 - ISO 4032/8673
- = dimensions not defined in relevant standard
  Prevailing torque type hexagon nuts, low type DIN 980 - ISO 7042
 Prevailing torque type hexagon nuts, non-metallic insert DIN 982 - ISO 7040
 Prevailing torque type hexagon nuts, low type DIN 985 - ISO 10511
- = dimensions not defined in relevant standard
  Changed head dimensions for
Slotted cheese head screws ISO 1207 - DIN 84
 Tapping screws with hexagon head ISO 1479 - DIN 7976
- = dimensions not defined in relevant standard
  Metric screws ISO 1580 - DIN 85
 Tapping screws ISO 1481 - DIN 7971
  Metric screws ISO 7045, 14583 - DIN 7985
 Tapping screws ISO 7049 - DIN 7981
- = dimensions not defined in relevant standard
  Metric screws ISO 2009, 2010, 7046, 7047 - DIN 963, 964, 965, 966
 Tapping screws ISO 1482, 1483, 7050, 7051 - DIN 7972, 7973, 7982, 7983
  Countersunk screws ISO 10642 - DIN 7991
- = dimensions not defined in relevant standard
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