ISO 10664:2005 specifies the shape and basic dimensions of the hexalobular internal driving feature for bolts and screws, including the gauging method. Its intent 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.
Status : WithdrawnPublication date : 2005-07
Edition : 2
Technical Committee:Fasteners with metric external thread