[00] GENERAL - - STANDARD PART/TIGHTENING-TORQUE TABLE | PRINT PAGE / INDEX / PRIOR / NEXT

STANDARD PART/TIGHTENING-TORQUE TABLE Each torque value in the table is a standard value for tightening under the following conditions. Bolts, nuts and washers are all made of steel and plated with zinc. The threads and bearing surface of bolts and nuts are all in dry condition. The values in the table are not applicable: If toothed washers are inserted. If plastic parts are fastened. If bolts are tightened to plastic or die-cast inserted nuts. If self-tapping screws or self-locking nuts are used.
STANDARD BOLT AND NUT TIGHTENING TORQUE
Thread size | Torque N·m
--- | ---
Bolt nominal diameter mm | 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 | 8.5 ± 1.5 | 10 ± 2
M8 | 1.25 | 11 ± 2 | 20 ± 4 | 24 ± 4
M10 | 1.25 | 23 ± 4 | 42 ± 8 | 53 ± 7
M12 | 1.25 | 42 ± 8 | 80 ± 10 | 93 ± 12
M14 | 1.5 | 70 ± 10 | 130 ± 20 | 150 ± 20
M16 | 1.5 | 105 ± 15 | 195 ± 25 | 230 ± 30
M18 | 1.5 | 150 ± 20 | 290 ± 40 | 335 ± 45
M20 | 1.5 | 210 ± 30 | 400 ± 60 | 465 ± 65
M22 | 1.5 | 290 ± 40 | 540 ± 80 | 630 ± 90
M24 | 1.5 | 375 ± 55 | 705 ± 105 | 820 ± 120
FLANGE BOLT AND NUT TIGHTENING TORQUE
Thread size | Torque N·m
--- | ---
Bolt nominal diameter mm | 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 | 28 ± 5
M10 | 1.25 | 26 ± 5 | 50 ± 5 | 58 ± 7
M10 | 1.5 | 25 ± 4 | 46 ± 8 | 55 ± 5
M12 | 1.25 | 47 ± 9 | 93 ± 12 | 105 ± 15
M12 | 1.75 | 43 ± 8 | 83 ± 12 | 98 ± 12
NOTE: Be sure to use only the specified bolts and nuts, and always tighten them to the specified torques. Bolts marked with indications such as 4T or 7T are reinforced bolts. The larger the number, the greater the bolt strength.

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