BS ISO 529:2017 pdf free
BS ISO 529:2017 pdf free.Short machine taps and hand taps
This document 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:
一length of thread (maximum);
一overall length;
一shank diameter and dimensions of driving square;
一dimensions of the connecting portion between the shank and threaded part.
This document is applicable to taps intended for cutting the following threads:
a) ISO metric threads:
一 coarse pitch;
一fine pitch;
b) ISO inch threads:
一”Unified Coarse” series (UNC) and “Unified Fine” series (UNF);
c) Inch threads, non-recommended:
一”British Standard Whitworth” (BSW) and “British Standard Fine” (BSF);
一”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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 237, Rotating tools with parallel shanks一Diameters of shanks and sizes of driving squares
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
一IEC Electropedia: available at http://www.electropedia.org/
一ISO Online browsing platform: available at http://www.iso.org/obp
ISO 286-2, Geometrical product specifications (GPS) – ISO code system for tolerances on linear sizes一Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
ISO 2857, Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches一Manufacturing tolerances on the threaded portion.BS ISO 529 pdf download.
