Historical
ISO 2936:2001
Assembly tools for screws and nuts -- Hexagon socket screw keys
This International Standard specifies the dimensions, method of test, designation and marking of hexagon socket screw keys. It also specifies the minimum values of Rockwell hardness that shall be met.
The specifications of this International Standard apply for tightening of hexagon socket screws for property class less than or equal to 12.9 as defined in ISO 898-1 and for tightening of socket set screws as defined in ISO 898-5.
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International Organization for Standardization [iso]
International Organization for Standardization [iso]