TM 9--2350--292--20--20720 00--2TORQUE LIMITS -- CONTINUED0720 00HOW TO USE TORQUE TABLE -- CONTINUEDCAPSCREW HEAD MARKINGSManufacturer’s marks may vary.These are all SAE Grade 5 (3 line)e. To find the grade screw you are installing, match the markings on the head to the correct picture of CAPSCREWHEAD MARKINGS on the torque table.f. Look down the column under the picture you found in step e. until you find the torque limit (in lb--ft or Nm) for thediameter and threads per inch of the screw you are installing.Table 1. Torque Limits for Dry FastenersSAE CAPSCREW HEAD MARK-INGSSIZETORQUESAE GRADENo. 1 or 2SAE GRADENo. 5SAE GRADENo. 6 or 7SAE GRADENo. 8DIA.INS.THREADSPER INCHMMsPOUND--FEETNmPOUND--FEETNmPOUND--FEETNmPOUND--FEETNm1/4206.3556.788.010.851013.5612.016.271/4286.3568.14 10.013.56 —— 14.018.985/16187.941114.92 17.023.05 1925.76 24.032.525/16247.941317.63 19.025.76 —— 27.036.613/8169.531824.41 31.042.04 3446.10 44.059.663/8249.532027.12 35.047.46 —— 49.066.447/161411.112837.97 49.066.44 5574.58 70.094.927/1620—3040.68 55.074.58 —— 78.0105.771/21312.703952.88 75.0101.70 85115.26 105.0142.381/220—4155.60 85.0115.26 —— 120.0162.789/161214.295169.16 110.0149.16 120162.72 155.0210.189/1618—5574.58 120.0162.72 —— 170.0230.525/81115.886385.43 150.0203.40 167226.45 210.0284.765/818—95128.82 170.0230.52 —— 240.0325.443/41019.05105142.38 270.0366.12 280379.68 375.0508.503/416—115155.94 295.0400.02 —— 420.0596.527/8922.23160216.96 395.0535.62 440596.64 605.0820.387/814—175237.30 435.0589.86 —— 675.0915.301825.40235318.66 590.0800.04 660894.96 910.01233.96114—250339.00 660.0894.96 —— 990.01342.441--1/8—25.58—— 800.01064.8 —— 1280.01735.7880.01193.31440.01952.81--1/4—31.75—— —— —— 1820.02467.9—— 2000.02712.01--3/8—34.93—— 1460.01979.8 —— 2380.03227.31680.02278.12720.03688.31--1/2—38.10—— 1940.02630.6 —— 3160.04285.02200.02983.23560.04827.4
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