This Standard specifies the characteristics of cross recessed head tapping screws with thread sizes from ST2.2 to ST9.5 inclusive.
The characteristics of cross recessed head tapping screws with Class 1 to Class 4 threads that are not in accordance with JIS B 1007 are specified in Annex JA.
NOTE: The International Standards corresponding to this Standard and the symbol of degree of correspondence are as follows.
ISO 7049: 2011 Cross-recessed pan head tapping screws ISO 7050:
2011 Cross-recessed countersunk (flat) head tapping screws ISO 7051:
2011 Cross-recessed raised countersunk (oval) head tapping screws (Overall evaluation: MOD)
In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standards and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.