BS A297:1987现行
Specification for internal drive, offset cruciform recess (Torq-Set(R)) for rotary fastening devices. Metric series
出版：British Standards Institution
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基本信息
标准编号： BS A297:1987
发布时间：1987/3/31 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：12
标准简介
Specifies maximum and minimum dimensional requirements for rotary fastening devices, and for associated drivers and gauges, for metric design.
标准备注
© British Standards Institution 2013
等同采用的国际标准
ISO 7994:1985 - Equivalent
