M00001662
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ISO 10664 3rd Edition, October 1, 2014 Hexalobular internal driving feature for bolts and screws
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Availability date: 07/13/2021
Description / Abstract:
This International Standard specifies the shape and basic
dimensions of the hexalobular internal driving feature for bolts
and screws, including the gauging method.
The curvature of the contour of the hexalobular internal driving
feature is defined by the gauges specified in Tables 3, 4, and
5. Additional information which can be used when drawing the
contour is given in Annex A.
The intent of this International Standard is to provide the
details necessary for inspection of the hexalobular driving
feature. It is not suitable for, nor intended to be used as, a
manufacturing standard.