Quantcast Table E-2.  Torque Limits for Wet Fasteners

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TM 9-2815-250-24&P E-3.  HOW TO USE TORQUE TABLE (continued). Table E-2.  Torque Limits for Wet Fasteners SAE CAPSCREW HEAD MARKINGS SIZE TORQUE SAE GRADE SAE GRADE SAE GRADE SAE GRADE No.  1 or 2 No.  5 No.  6 or 7 No.  8 DIA. THREADS FOOT FOOT- FOOT- FOOT- (IN.) PER INCH MM POUNDS Nm POUNDS Nm POUNDS Nm POUNDS Nm 1/4 20 6.35 4.9 6.10 7.2 9.76 9.0 12.00 10.8 14.64 1/4 28 6.35 5.4 7.33 9.0 12.20 12.6 17.08 5/16 18 7.94 9.9 13.34 15.3 22.54 17.1 23.18 21.6 29.27 5/16 24 7.94 11.7 15.87 17.1 23.18 24.3 32.95 3/8 16 9.53 16.2 21.97 27.9 37.84 30.6 41.49 39.6 53.69 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 85.42 7/16 20 27.0 36.61 49.5 67.12 70.2 95.19 1/2 13 12.70 35.1 47.58 67.5 91.53 76.5 103.73 94.5 128.14 1/2 20 36.9 50.04 76.5 103.73 106.0 146.50 9/16 12 14.29 45.9 62.24 99.0 134.24 108.0 146.45 139.5 189.16 9/16 18 45.5 67.12 106.0 146.45 153.0 207.47 5/8 11 15.88 56.7 76.89 135.0 183.06 150.3 203.80 189.0 256.28 5/8 18 85.5 115.94 153.0 207.47 216.0 296.90 3/4 10 19.05 94.5 128.14 243.0 329.51 252.0 341.71 337.5 457.65 3/4 16 103.5 140.35 265.5 360.20 378.0 536.87 7/8 9 22.23 144.0 195.26 355.5 482.06 396.0 536.98 544.5 738.34 7/8 14 157.5 213.57 391.5 530.87 607.5 823.77 1 8 25.40 211.5 286.79 531.0 720.04 594.0 805.46 819.0 1110.56 1 14 225.0 305.10 594.0 805.46 891.0 1208.20 1-1/8 25.58 720.0 976.32 1152.0 1562.13 792.0 1073.97 1296.0 1757.52 1-1/4 31.75 1638.0 2221.11 1800.0 2440.80 14-3/8 34.93 1314.0 1781.82 2142.0 2904.57 1512.0 2050.29 2448.0 3319.47 1-1/2 38.10 1746.0 2367.54 2844.0 3856.50 1980.0 2684.88 3204.0 4344.66 E-4.  TIGHTENING METAL FASTENERS. When torquing a fastener, select a torque wrench whose range (Table E-3, p. E-4) fits the required torque value.  A torque wrench is most accurate from 25 percent to 75 percent of its stated range.  A torque wrench with a stated range of 0 to 100  will  be  most  accurate  from  25  to  75  foot-pounds.    The  accuracy  of  readings  will  decrease  as  you  approach  0  foot- pounds or 100 foot-pounds.  The ranges in Table E-3 are based on this principle. E-3


 


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