BS ISO 529:2017

This standard BS ISO 529:2017 Short machine taps and hand taps is classified in these ICS categories:

• 25.100.50 Taps and threading dies

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:

• length of thread (maximum);

• overall length;

• shank diameter and dimensions of driving square;

• dimensions of the connecting portion between the shank and threaded part.

This document is applicable to taps intended for cutting the following threads:

1. ISO metric threads:

   • coarse pitch;

   • fine pitch;

2. ISO inch threads:

   • “Unified Coarse” series (UNC) and “Unified Fine” series (UNF);

3. Inch threads, non-recommended:

   • “British Standard Whitworth” (BSW) and “British Standard Fine” (BSF);

   • “British Association” (BA).