BS A297:1987現行
Specification for internal drive, offset cruciform recess (Torq-Set(R)) for rotary fastening devices. Metric series
出版：British Standards Institution
專家解讀視頻
基本信息
標準編號： BS A297:1987
發布時間：1987/3/31 0:00:00
標準類別：Standard
出版單位：British Standards Institution
標準頁數：12
標準簡介
Specifies maximum and minimum dimensional requirements for rotary fastening devices, and for associated drivers and gauges, for metric design.
標準備注
? British Standards Institution 2013
等同采用的國際標準
ISO 7994:1985 - Equivalent
