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Page Title: Table J-1. Torque Limits For Wet Flange Nuts
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TM 9-2320-304-14&P J-2 (2)  Measure out one inch with a ruler and count the number of threads per inch. (3)  Under the heading SIZE, look down the left hand column until you find the diameter of the screw you are installing (there will usually be two lines beginning with the same size). (4)  In the second column under SIZE, find the number of threads per inch that matches the number of threads per inch you counted in step (2). (Not required for metric screws). (5)  To find the grade screw you are installing, match the markings on the head with the correct picture of CAPSCREW HEAD MARKINGS on the torque table. (6)  Look down the column under the picture you found in step (5) until you find the torque limit (lb-ft. or NSm) for the diameter and threads per inch of the screw you are installing. (7)  Use wet torque values. Table J-1. Torque Limits For Wet Flange Nuts SPIRALOCK FLANGE DIAMETER THREADS TORQUE NUT MARKINGS GRADE 8 IN. MM PER INCH LB-FT NSm 1/4 6.35 20 15 20 5/16 7.94 18 25 34 3/8 9.53 16 45 61 1/2 12.70 13 110 149 5/8 15.87 11 210 285 3/4 19.05 10 375 508 Table J-2. Torque Limits For Wet Socket Head Cap Screws TORQUE IN FT. LBS (CAP SCREWS) LUBED SIZE SOC HD OR 12 PT SOC FLAT HD .10-24 55 2.5 .25-20 12 6 .31-18 25 12 .38-16 44 22 .50-13 70 36 .56-12 106 53 .62-11 212 106 .75-10 375 187 1.00-8 781

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