Alcance
ISO 529:2017 specifies the general dimensions of short machine taps and hand taps. These dimensions, established as functions of the thread diameter and pitch, are the following:- length of thread (maximum);- overall length;- shank diameter and dimensions of driving square;- dimensions of the connecting portion between the shank and threaded part.ISO 529:2017 is applicable to taps intended for cutting the following threads:a) ISO metric threads:- coarse pitch;- fine pitch;b) ISO inch threads:- "Unified Coarse" series (UNC) and "Unified Fine" series (UNF);c) Inch threads, non-recommended:- "British Standard Whitworth" (BSW) and "British Standard Fine" (BSF);- "British Association" (BA).NOTE 1 The overall length, thread length and diameters of shank for taps whose thread diameter and pitch are not listed in tables are given in Table A.1.NOTE 2 Annex B gives an abstract from ISO 237 for shank diameters and size of driving squares, for information.NOTE 3 Technical specifications for taps covered by this document (including marking) are given in ISO 8830.