This standard specifies the types and dimensions of locking wire thread inserts whose mounting handles need to be removed (or not removed) as needed after assembly. This standard applies to gas turbine power units, and other machinery with similar requirements can also be used with reference.
JB/T 7604.1-1994 history
1994JB/T 7604.1-1994 Locking type steel wire turnbuckles Type and dimension