HB 6387-1990
Blank diameter before MJ thread rolling (English Version)

Standard No.
HB 6387-1990
Language
Chinese, Available in English version
Release Date
1990
Published By
Professional Standard - Aviation
Latest
HB 6387-1990
Scope
This standard specifies the lint diameter size and tolerance of MJ threads before rolling, and gives the calculation method for the lint diameter size. This standard applies to bolts rolled with full-thread MJ thread rolling wheels. For piping parts and structures, please refer to it.

HB 6387-1990 history

Blank diameter before MJ thread rolling



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