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2
TIGHTENING TORQUE
SERVICE DATA
Bolts and nuts (JIS strength category 10.9)
Thread
Size × pitch
T
ightening torque
General tightening points Special tightening points
N·m N·m
Coarse
M6 × 1.0
9.8 ±0.5 11.8 ±1.1
M8 × 1.25
22.6 ±1.1 26.5 ±2.5
M10 × 1.5
47.1 ±2.4 54.9 ±4.9
M12 × 1.75
83.4 ±4.1 97.1 ±7.4
M14 × 2.0
134.4 ±6.7 155.9 ±12.7
M16 × 2.0
207.9 ±10.4 241.2 ±17.2
M20 × 2.5
410.9 ±20.5 475.6 ±23.7
Fine
M8 × 1.0
24.5 ±1.2 28.4 ±1.4
M10 × 1.25
50.0 ±2.5 58.8 ±2.9
M12 × 1.5
87.3 ±4.3 102.0 ±5.1
M14 × 1.5
135.3 ±6.8 157.9 ±7.8
M16 × 1.5
220.6 ±11.0 256.0 ±12.7
M20 × 1.5
452.1 ±22.6 524.7 ±26.1
1. General tightening points (non-lubricated)
All securing points that have no special tightening
torque specified in this manual and that are not special
tightening points.
2. Special tightening points (grease with molybdenum di-
sulfide applied)
Points where a specific tightening torque is specified in
this manual.
3. Points where thread-locking compound should be ap-
plied (Thr
eeBond #1324).
4. If a tightening torque value is specified in this manual
for a point not listed in the table above, follow the spec-
ification in the manual.
5. To tighten multiple bolts and nuts evenly, alternately
tighten opposite bolts/nuts as a pair.
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