BS ISO 2284:2017规定了管道螺纹手动丝锥的一般尺寸和标记。适用于以下两种丝锥:平行螺纹丝锥（见图1和表1）、锥形螺纹丝锥（见图2和表2），螺纹符合ISO 7-1和ISO 228-1。此外，附录A中给出了用于计算尺寸的基准，附录B中给出了 本文件中的名称与ISO 13399系列之间的关系。交叉引用:ISO 237ISO 5969ISO 7-1ISO 228-1ISO 529ISO 13399购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS ISO 2284:2017 specifies the general dimensions and marking of hand taps for pipe threads.It is applicable to the two following types of tap:taps for parallel threads (see Figure 1 and Table 1),taps for taper threads (see Figure 2 and Table 2),having threads in accordance with ISO 7-1 and ISO 228-1.Furthermore, it gives in Annex A the bases used for calculation of the dimensions, and in Annex B the relationship between designations in this document and the ISO 13399 series.Cross References:ISO 237ISO 5969ISO 7-1ISO 228-1ISO 529ISO 13399All current amendments available at time of purchase are included with the purchase of this document.