GB/T 28691-2012
High precision trapezoidal thread broaching tap (English Version)
- Standard No.
- GB/T 28691-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 28691-2012
- Scope
- This standard specifies the basic requirements for the type and size of high-precision trapezoidal thread broaching taps, thread tolerance, technical requirements, marking and packaging. This standard applies to high-precision trapezoidal thread broaching taps (hereinafter referred to as taps) for machining trapezoidal threads (levels 7, 8, and 9 in JB/T 2886-2008 are not used as nuts).
GB/T 28691-2012 Referenced Document
- GB/T 5796.1-2005 Trapezoidal screw threads-Part 1:Profiles
- JB/T 2886-2008 Trapezoid thread screw and nut for machine tools.Specincations
GB/T 28691-2012 history
- 2012 GB/T 28691-2012 High precision trapezoidal thread broaching tap
