BS 949-2-1992 标准详情
- 标准号:BS 949-2-1992
- 中文标题:丝锥.统一磨制螺纹丝锥规范:制造公差
- 英文标题:Screwing taps - Specification for unified ground thread taps - Manufacturing tolerances
- 标准类别:英国标准
- 发布日期:1992-12-15
This Part of BS 949 specifies dimensions and tolerances for screwing taps for the following threads:a) Unified (ISO inch) general-purpose screw threads, coarse thread series (UNC), from no. 1 to no. 12 and from 1/4 in to 4 in diameter in accordance
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