Power Train Specifications 28 General tightening torque for bolts, nuts and taperlock studs The following charts give the standard torque values for bolts, nuts and taperlock studs of SAE Grade 5 or better quality. Exceptions are given in other sections of the Service Manual where needed. thread size Standard torque inches lb¥ft N¥m* Use these torques for bolts and nuts with standard threads (conversions are approximate).
standard thread Standard thread 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 9 L 3 18 L 5 32 L 5 50 L 10 75 L 10 110 L 15 150 L 20 265 L 35 420 L 60 640 L 80 800 L 100 1000 L 120 1200 L 150 1500 L 200 12 L 4 25 L 7 45 L 7 70 L 15 100 L 15 150 L 20 200 L 25 360 L 50 570 L 80 875 L 100 1100 L 150 1350 L 175 1600 L 200 2000 L 275 Use these torque for bolts and nuts on hydraulic valve bodies. 5/16 3/8 7/16 1/2 5/8 13 L 2 24 L 2 39 L 2 60 L 3 118 L 4 20 L 3 35 L 3 50 L 3 80 L 4 160 L 6 Use these torques for studs with taperlock threads.
taperlock Stud 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2 5 L 2 10 L 3 20 L 3 30 L 5 40 L 5 60 L 10 75 L 10 110 L 15 170 L 20 260 L 30 320 L 30 400 L 40 480 L 40 550 L 50 7 L 3 15 L 5 30 L 5 40 L 10 55 L 10 80 L 15 100 L 15 150 L 20 230 L 30 350 L 40 400 L 40 550 L 50 650 L 50 750 L 70 *1 newton meter (N¥m) is approximately the same as 0.1 kg¥m.