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GENERAL – Standard Part/Tightening Torque Table 00-8 STANDARD PART/TIGHTENING TORQUE TABLE Each torque value in the table is a standard value and plated with zinc. (2) The threads and bearing surface of bolts and nuts are all in dry condition. The values in the table are not applicable: inserted nuts. (4) If self-tapping screws or self-locking nuts are used. Standard bolt and nut tightening torque Thread size Torque N·m Bolt nominal Pitch (mm) Head mark “4” Head mark “7” Head mark “8” M5 0.8 2.5 ± 0.5 5.0 ± 1.0 6.0 ± 1.0 M6 1.0 5.0 ± 1.0 9.0 ± 2.0 10 ± 2 M8 1.25 12 ± 2 22 ± 4 25 ± 4 M10 1.25 24 ± 4 44 ± 10 53 ± 7 M12 1.25 41 ± 8 83 ± 12 98 ± 12 M14 1.5 73 ± 12 140 ± 20 155 ± 25 M16 1.5 110 ± 20 210 ± 30 235 ± 35 M18 1.5 165 ± 25 300 ± 40 340 ± 50 M20 1.5 225 ± 35 410 ± 60 480 ± 70 M22 1.5 300 ± 40 555 ± 85 645 ± 95 M24 1.5 395 ± 55 735 ± 105 855 ± 125 Flange bolt and nut tightening torque Thread size Torque N·m Bolt nominal Pitch (mm) Head mark “4” Head mark “7” Head mark “8” M6 1.0 5.0 ± 1.0 10 ± 2 12 ± 2 M8 1.25 13 ± 2 24 ± 4 27 ± 5 M10 1.25 26 ± 4 49 ± 9 58 ± 7 M10 1.5 24 ± 4 45 ± 8 55 ± 10 M12 1.25 46 ± 8 95 ± 15 105 ± 15 M12 1.75 43 ± 8 83 ± 12 98 ± 12 N O T E Be sure to use only the specified bolts and nuts, and always tighten them to the specified torques. 2. Bolts marked with indications such as 4T or 7T are reinforced bolts. The larger the number, the greater |