GB/T 967-2008Nut taps (English PDF)

Foreword

This standard replaces GB/T 967-1994 "Nut Taps." The standards are compared with the GB/T 967-1994 changes as follows.

--- Added "foreword";

--- Tag example, the left-hand thread by the symbol "L" to "LH";

--- Tag example, the "spiral" to "thread";

--- According to GB/T 1.1-2000 made editorial changes.

This standard tool by the National Standardization Technical Committee (SAC/TC91) centralized.

1 Scope

This standard specifies the basic requirements nut tap type, size, thread tolerances, and other technical requirements.

This standard applies to the processing of common screw (GB/T 192 ~ 193, GB/T 196 ~ 197) Taps nut.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

GB/T 192 ordinary screw threads - Basic model (GB/T 192-2003, ISO 68-1:1998, MOD)

GB/T 193 series common thread diameter and pitch (GB/T 193-2003, ISO 261:1998, MOD)

GB/T 196 common thread basic size (GB/T 196-2003, ISO 724:1993, MOD)

GB/T 197 common thread tolerance (GB/T 197-2003, ISO 965-1:1998, MOD)

GB/T 968 tap thread tolerance (GB/T 968-2007, ISO 2857:1973, MOD)

GB/T 969 Taps technical conditions (GB/T 969-2007, ISO 8830:1991, MOD)

3 Taps type and size

Type shown in Figure 1, the size in Tables 1 and 2 below.