ISO 12256:2002 Preview
Aerospace -- Drives, internal, cruciform, ribbed -- Metric series
This standard was last reviewed and confirmed in 2014. Therefore this version remains current.
ISO 12256:2002 specifies the dimensions of metric internal cruciform ribbed drives used in metric screws in the nominal thread diameter range of 3 mm to 20 mm.
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Revisions / Corrigenda
Now under review
ISO 12256:2002/Cor 1:2009