TM 5-4310-393-14 APPENDIX G TORQUE LIMITS NOTE When  torquing  a  fastener,  select  a  wrench  whose  range  fits  the  required  torque value.    A  torque  wrench  is  most  accurate  from  25%  to  75%  of  its  stated  range.    A wrench  with  a  stated  range  of  0  to  100  will  be  most  effective  from  25  to  75  foot- pounds. The accuracy of the reading will decrease as you approach the 0 or the 100 mark. Torque wrench setting: General for hex and Hex head screws Thread: M 4 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs Ft 4/1.03 1.3/0.96 1.7/1.25 2.8/2.06 3.9/2.88 4.7/3 47 Thread: M 5 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs Ft 2.8/2.07 2.6/1.92 3.4/2.51 5.5/4.06 7.8/5.75 9.3/6.86 Thread: M 6 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs Ft 4.8/3.54 4.5/3.32 6.0/4.43 9.5./7.00 13/9.59 16/11.8 Thread: M 8 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs Ft 12/8.85 11/8.11 14/10.33 23/16.96 33/24.34 39/28.77 Thread: M 10 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs Ft 23/16.96 22/16.23 29/21.39 46/33.93 65/47.94 78/57.53 Thread: M 12 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque. Nm/lbs Ft 40/29.50 38/28.03 50/36.88 80/59.00 110/81.13 140/103.26 Thread: M 14 Tensile quality: 4.8 5.6 5.8 8.8 10.9 2.9 Torque: Nm/lbs ft 64/47.20 60/44.25 80/59.0 130/95.88 180/132.76 220/162.27 Thread: M 16 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs Ft: 97/71.54 91/67.12 120/88.57 190/140.14 270/199.14 330/243.40 Thread: M 18 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs. Ft. 130/95.88 130/95.88 170/125.88 270/199.14 380/280.28 450/331.91 Thread: M 20 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs ft 190/140.14 180/132.76 240/177.02 380/280.28 530/390.91 640/472.05 Thread: M 22 Tensile quality: 4.8 5.6 5.8 8.8 10.9 12.9 Torque: Nm/lbs. ft. 260/191.77 240/177.02 320/236.02 510/376.16 720/531.05 860/634.31 Nm : 1,3558 = lbs Ft Nm : 9,81 (10)= kpm G-1