TM 9-2320-361-34 Table E-2 Torque Limits for Wet Fasteners CAPSCREW HEAD MARKINGS TORQUE SIZE SAE GRADE SAE GRADE SEA GRADE SAE GRADE No. 1or 2 No. 5 NO.6or7 NO. 8 DIA THREADS DIA. POUND NEWTON POUND NEWTON POUND NEWTON INCHES PER INCH MILLIMETERS FEET POUND NEWTON METERS FEET METERS FEET METERS FEET METERS 1/4 20 6.35 4,5 6.1 7.2 9.76 9.0 12.20 10.8 14.64 1/4 28 6.35 5.4 7.32 9.0 12.20 - — 12.6 17.09 5/16 18 7.94 9.9 13.42 15.3 20.75 17.1 23.19 21.6 29.29 5/16 24 7.94 11.7 15.87 17.1 23.19 - - 24.3 32.95 3/8 16 9.53 16.2 21.97 27.9 37.83 30.6 41.49 39.6 53.70 3/8 24 9.53 18.0 24.41 31.5 42.71 - 44.1 59.80 7/16 14 11.11 25.2 34.17 44.1 59.80 49.5 67.12 63.0 85.43 7/16 20 11.11 27.0 36.61 49.5 67.12 - - 70.2 95.19 1/2 13 12.70 35.1 47.60 67.5 91.53 76.5 103.73 94.5 128.14 1/2 20 12.70 36.9 50.04 76.5 103.73 - — 108.0 146.4 9/16 12 14.29 45.9 62.24 99.0 134.24 108.0 146.45 139.5 189.16 9/16 18 14.29 49.5 67.12 108.0 146.45 - — 153.0 207.47 5/8 11 15.88 56.7 76.89 135.0 183.06 150.3 203.81 189.0 254.28 5/8 18 15.88 85.5 115.94 153.0 207.47 - - 216.0 292.90 3/4 10 19.05 94.5 128.14 243.0 329.51 252.0 341.71 337.5 457.65 3/4 16 19.05 103.5 140.35 265.5 360.02 - - 378.0 512.57 7/8 9 22.23 144.0 195.26 355.5 482.06 396.0 536.98 544.5 738.34 7/8 14 22.23 157.5 213.57 391.5 530.87 - - 607.5 823.77 I 8 25.40 211.5 286.79 531.0 720.04 594.0 805.46 819.0 1110.56 14 25.40 225.0 305.10 594.0 805.46 - - 891.0 1208.20 1-1/8 - 25.58 - - 720.0 976.32- - - 1152.0 1562.11- 792.0 1073.95 1296.0 1757.38 1-1/4 — 31.75 - - 1637.99 2221.11- 1800.00 2440.80 1-3/8 - 34.93 - - 1314.0 1781.78. — - 2142.0 2904.55- 1512.0 2050.27 2448.0 3319.49 1-1/2 - 38.10 - - 1746.0- 2367.58. — - 2844.0 3856.5- 1980.0 2684.88 3204.0 4344.62 1 1 E-3