HB 246-1975
Screw thread finishing (washout thread, thread margin, undercut, chamfer, ring groove) (English Version)

Standard No.

HB 246-1975

Language

Chinese, Available in English version

Published By

Professional Standard - Aviation

Status

Be replaced

Replace By

HB 246-2004

Latest

HB 246-2010

Replace

HB 246-1967

Scope

This standard specifies the types and dimensions of thread ends, thread blanks, undercuts, chamfers and ring grooves for ordinary threads, clearance threads and interference threads.

HB 246-1975 history

• 2010 HB 246-2010 Guidelines for managing risk in sport and recreation organizations
• 2004 HB 246-2004 Guidelines for Managing Risk in Sport and Recreation
• 1970 HB 246-1975 Screw thread finishing (washout thread, thread margin, undercut, chamfer, ring groove)
• 0000 HB 246-1967