GENERAL / Tightening IMPORTANT: The following items are applied to both fine and coarse pitch threads. 1. When tightening, apply lubricant in order to reduce friction coefficient of bolts and nuts. (Ex. white zinc B dissolved into spindle oil) 2. Torque tolerance is ± 20 %. 3. Use the bolts of correct length. The bolts that are too long cannot be tightened as the bolt tip comes into contact with the bottom of bolt hole. The bolts that are too short cannot develop sufficient tightening force. 4. The torques given in table on the previous page are for general use only. Do not use these torques if a different torque is given for a specific application. 5.
Clean the nut and bolt threads and remove dirt or corrosion before installing. Specified Tightening Torque Tightening Order When tightening two or more bolts, tighten them alternately, as shown, to ensure even tightening. Equally tighten upper and lower alternately Tighten diagonally Tighten from center and diagonally 1.4 1 12 14 9 4 1 6 7 6 3 2.3 4 5 2 13 8 5 2 3 10 11 W105-01-01-003 W1-2-3 Bolt Dia.
(mm) Socket Bolt Wrench Size (mm) N⋅m kgf⋅cm lbf⋅ft 4 4.49 45.8 3.3 3 5 9.24 94.2 6.8 4 6 15.6 159 11.5 5 8 38.3 391 28 6 10 76.5 780 56 8 12 133 1360 98 10 14 216 2200 159 12 16 341 3480 250 14 18 463 4720 340 14 20 665 6780 490 17 22 918 9360 680 17 24 1150 11700 850 19 27 1720 17500 1270 19 30 2300 23500 1700 22 33 3170 32300 2340 24 36 4060 41400 3000 27 39 5290 53900 3900 27