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HELP_VARIABLE
IDNR
Ident number
mm
D
Nominal thread diameter
mm
D1
Nominal core diameter
mm
P
Pitch of bolt
mm
DA
Diameter of the countersink
mm
DW
Diameter of the bearing face
mm
E
Width across corners
mm
M
Overall hight
mm
M1
Wrenching height
mm
S
Width across flats
mm
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Dimension