
Y R Application: NUT X General Industry L IC SCREW AMERICAN UN FULL PROFILE (ANSI B1, 3M-1986 CLASS 2A/2B) Designation Thread Type Hand Insert Type IC (inch) TPI L (inch) R (inch) X (inch) Y (inch) Grade 16IRM12UN 12 0.005 0.043 0.055 INTERNAL 16IRM16UN 16 0.004 0.035 0.043 16ERM20UN 20 0.006 0.031 0.035 16ERM12UN RIGHT M TYPE 0.375 12 0.630 0.010 0.043 0.055 TT5080 16ERM14UN EXTERNAL 14 0.009 0.039 0.047 16ERM16UN 16 0.007 0.035 0.043 16ERM18UN 18 0.006 0.031 0.039 Y R Application: NUT X General Industry, Fittings and Pipe Couplings L IC SCREW WHITWORTH FULL PROFILE (BS 84-1956 DIN259 MEDIUM CLASS) Designation Thread Type Hand Insert Type IC (inch) TPI L (inch) R (inch) X (inch) Y (inch) Grade 16IRM11W 11 0.012 0.043 0.059 INTERNAL 16IRM14W 14 0.009 0.039 0.047 16ERM11W RIGHT M TYPE 0.375 11 0.630 0.012 0.043 0.059 TT5080 16ERM14W EXTERNAL 14 0.009 0.039 0.047 16ERM19W 19 0.003 0.031 0.039 228