TM 10-4320-346-12&P APPENDIX H TORQUE LIMITS H-1. GENERAL.    This  appendix  provides  general  torque  limits  for  fasteners.    Special  torque  values  are indicated in the maintenance procedures for applicable components.  The general torque values given in this appendix shall be used when specific torque values are not indicated in the maintenance procedures. H-2. TORQUE  LIMITS.     Torque  limits  are  listed  in  Table  H-1  for  fasteners.    Dry  fasteners  are  defined  as fasteners on which no lubricants are applied to the threads.  Wet fasteners are defined as fasteners on which graphite or moly-disuphide greases or other extreme pressure lubricants are applied to the threads.  Table H-2 lists the minimum breakaway torque values for locknuts. Table H-1.  General Torque Requirements for Dry Fasteners.* Torque Requirement in lb ft (N.m) Bolt/Screw SAE Grade SAE Grade SAE Grade SAE Grade Size 1 or 2 5 6 or 7 8 1/4-20 UNC 5 (7) 8 (11) 10 (14) 12 (16) 1/4-28 UNF 6 (8) 10 (14) 12 (16) 14 (19) 5/16 18 UNC 11 (15) 17 (23) 19 (26) 24 (33) 5/16-24 UNF 13 (18) 19 (26) 23 (31) 27 (37) 3/8 16 UNC 18 (24) 31 (42) 34 (46) 44 (60) 3/8-24 UNF 20 (27) 35 (47) 42 (57) 49 (66) 7/16-14 UNC 28 (38) 49 (66) 55 (75) 70 (95) 7/16-20 UNF 30 (41) 55 (75) 67 (91) 78 (106) 1/2-13 UNC 39 (53) 75 (102) 85 (115) 105 (142) 1/2-20 UNF 41 (56) 85 (115) 102 (138) 120 (163) 9/16-12 UNC 51 (69) 110 (149) 120 (163) 155 (210) 9/16-18 UNF 55 (75) 120 (163) 145 (197) 170 (231) 5/8-11 UNC 63 (85) 150 (203) 167 (226) 210 (285) 5/8-18 UNF 95 (129) 170 (231) 205 (278) 240 (325) 3/4-10 UNC 105 (142) 270 (366) 280 (380) 375 (509) 3/4-16 UNF 115 (156) 295 (400) 357 (484) 420 (570) 7/8-9 UNC 160 (217) 395 (536) 440 (597) 605 (820) 7/8-14 UNF 175 (237) 435 (590) 555 (753) 675 (915) H-1