Specification corresponding with standard blanks(DIN)

Main size designation and specification
① metric② unified③ whitworth④ sewing screw⑤STI (metric)⑥STI (unified)
M6×1№12-24UNC №12-28UNFW7/32-24SM15/64-28STIM4.5×0.75 STIM5×0.8STI№8-32UNC STI№8-36UNF STI№10-32UNF
M8×1.25 M8×11/4-20UNC 1/4-28UNF 5/16-18UNC 5/16-24UNFW1/4-20 W5/16-18SM1/4-20 SM1/4-28 SM9/32-20 SM5/16-18STIM6×1STI№10-24UNC STI№12-24UNC STI№12-28UNF STI1/4-20UNC STI1/4-28UNF
M10×1.5 M10×1.253/8-16UNC 3/8-24UNFW3/8-16SM11/32-28STIM8×1.25STI5/16-18UNC STI5/16-24UNF
M12×1.5 M12×1.257/16-14UNC 7/16-20UNFW7/16-14SM7/16-16STIM10×1.5 STIM10×1.25 STIM10×1STI3/8-16UNC STI3/8-24UNF
  • Corresponding pitches meet with the pitches of other kinds.
  • Concerning Hand of threads, both right and left are applicable in the same blank.