Specification corresponding with standard blanks(for Japanese market)

Material Symbols HSS:○ HSS-Co:● HSS-P:◎

Main size designation and specification
① metric② unified③ whitworth④ sewing screw⑤STI (metric)⑥STI (unified)
M12×1.75 M12×1.5 M12×1.25 M12×1
M13×1.75 M13×1.5 M13×1.25 M13×1 M13×0.751/2-13UNC 1/2-16UN 1/2-20UNF 1/2-28UNEF 1/2-32UNW1/2-12STIM11×1.5 STIM11×1.25STI7/16-20UNF
M13×0.5
M13×1.75 M13×1.5 M13×1.25 M13×1
M14×2
M14×1.5 M14×1.25 M14×1STIM12×1.5 STIM12×1.25 STIM12×1STI7/16-14UNC
M14×0.75
M14×0.5
M14×2 M14×1.5 M14×1.25 M14×1
M15×2 M15×1.5 M15×1.25 M15×19/16-12UNC 9/16-16UN 9/16-18UNF 9/16-20UN 9/16-24UNEF 9/16-28UNW9/16-12STIM12×1.75 STIM13×1.5STI1/2-20UNF
M15×0.759/16-32UN
M15×0.5
M15×2 M15×1.5 M15×1.25 M15×1
M16×2 M16×1.5 M16×1.25 M16×15/8-11UNC 5/8-12UN 5/8-16UN 5/8-18UNF 5/8-20UN 5/8-24UNEF 5/8-28UNW5/8-11STIM13×1.75 STIM14×1.5 STIM14×1.25STI1/2-13UNC
M16×0.75 M16×0.55/8-32UN
  • Corresponding pitches meet with the pitches of other kinds.
  • Concerning Hand of threads, both right and left are applicable in the same blank.
  • Concerning the kind of taps, SP, PO, HT, ROLL are applicable in the same blank.