ISO 2284:1987 PDF

Scope: This standard specifies general dimensions and markings for taps used for pipe threads. This standard applies to the following two types of taps; 　——cylindrical pipe thread taps (see Table 1); 　——conical pipe thread taps (see Table 2). The threads mentioned above are in accordance with ISO 228-1 and ISO 7-1. In addition, the calculation methods for the dimensions of each part are given in the appendix of this standard.

ISO 2284:1987 Referenced Document

GB/T 20334 Ground thread taps for pipe threads G series and Rp series.Tolerances on the threaded portion*， 2006-07-20 Update
GB/T 4267 Rotating tools with parallel shanks-Diameters of shanks and sizes of driving squares*， 2004-02-10 Update
ISO 228-1 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation*， 2000-09-01 Update
ISO 529 Short machine taps and hand taps*， 2017-03-01 Update
ISO 7-1 Pipe threads where pressure-tight joints are made on the threads — Part 1: Dimensions, tolerances and designation TECHNICAL CORRIGENDUM 1*， 1994-01-01 Update

2017 ISO 2284:2017 Hand taps for parallel and taper pipe threads - General dimensions and marking
1987 ISO 2284:1987 Hand taps for parallel and taper pipe threads; General dimensions and marking
1976 ISO 2284:1976 Hand taps for pipe threads for parallel and taper threads — General dimensions and marking
1972 ISO 2284:1972 Title missing - Legacy paper document