TM  9-6115-660-13&P APPENDIX H TORQUE  LIMITS SAE Grade Number 1 o r2 5 6 or 7 8 Quality of Indeterminate Minimum Medium Best Material Commercial Commercial Commercial Capscrew Head Markings NOTE Head marking may vary with different manufacturers. Capscrew  Body  Size Torque Torque Torque Torque (Inches ) - (Thread) Ft Lb (N.m) Ft Lb (N.m) Ft Lb (N.m) Ft Lb (N.m) 1/4 20 5 (7) 8 (11) 10 (14) 12 (16) 28 6 (8) 10 (14) 14 (19) 5/16 18 11 (15) 17 (23) 19 (26) 24 (33) 24 13 (18) 19 (26) 27 (37) 3/8 16 18 (24) 31 (42) 34 (46) 44 (60) 24 20 (27) 35 (47) 49 (66) 7/16 14 28 (38) 49 (66) 55 (75) 70 (95) 20 30 (41) 55 (75) 78 (106) 112 13 39 (53) 75 (102) 85 (115) 105 (142) 20 41 (56) 85 (115) 120 (163) 9/1 6 12 51 (69) 110 (149) 120 (163) 155 (210) 18 55 (75) 120 (1 63) 170 (231) 5/8 11 83 (113) 150 (203) 167 (226) 210 (285) 18 95 (129) 170 (231) 240 (325) 3/4 10 105 (142) 270 (366) 280 (380) 375 (508) 16 115 (156) 295 (400) 420 (569) 7/8 9 160 (217) 395 (536) 440 (597) 605 (820) 14 175 (237) 435 (590) 675 (915) 1 8 235 (319) 590 (800) 660 (895) 910   (1234) 14 250 (339) 660 (895) 9 9 0    ( 1 3 42 CAUTION If replacement capscrews are of a higher grade than originally supplied, use torque specifications for that placement. This will prevent equipment damage due to over torquing. NOTE Always use the torque values listed above when specific torque values are not available. H-1/(H-2   Blank)