Standard Bolt And Nut Tightening Torque; Metric Automobile Screw Thread; Metric Course Screw Thread; Standard Stud Tightening Torque - Mitsubishi S6S-Y3T61HF Service Manual

2.2 Standard bolt and nut tightening torque

2.2.1

Metric automobile screw thread

Threads
Dia × Pitch across flats
(mm) (mm) [in.]
M6 × 1.0 10 [0.39]
M8 × 1.25 12 [0.47]
M10 × 1.25 14 [0.55]
M12 × 1.25 17 [0.67]
2.2.2

Metric course screw thread

Threads
Dia × Pitch across flats
(mm) (mm) [in.]
M10 × 1.5 14 [0.55]
M12 × 1.75 17 [0.67]
Note: (a) This table lists the tightening torque for standard bolts and nuts.
(b) The numerical values in the table are for fasteners with spring washers.
(c) The table shows the standard values with a maximum tolerance value of ±10%.
(d) Use the tightening torque in this table unless otherwise specified.
(e) Do not apply oil to threaded portions. (Dry)

2.3 Standard stud tightening torque

Threads
Dia × Pitch
(mm)
M8 × 1.25
M10 × 1.25
Table 2-14 Metric automobile screw thread
Width
4
N·m kgf·m
3.9
11.8
21.1
35.3
Table 2-15 Metric course screw thread
Width
N·m
32
57
Table 2-16 Standard stud tightening torque
For driving in aluminum materials
N·m
5.4 ± 0.5
12.7 ± 1.0
Strength classification
4T
7
lbf·ft N·m
0.4 2.9 8.8
1.2 8.7 18
2.15 16 35
3.6 26 64
Strength classification
7T
kgf·m lbf·ft
3.3 24
5.8 42
kgf·m lbf·ft
0.55 ± 0.05 4.0 ± 0.4
1.3 ± 0.1 9.4 ± 0.7
7T
10
kgf·m lbf·ft N·m
0.9 6.5 12.7
1.9 13 30
3.6 26 60
6.5 47 108
10.9
N·m kgf·m
58 5.9
102 10.4
For driving in ferrous materials
N·m kgf·m
13.7 ± 1.0 1.4 ± 0.1
23.5 ± 2.0 2.4 ± 0.2
SERVICE DATA
10.9
kgf·m lbf·ft
1.3 9.4
3.1 22
6.1 44
11.0 80
lbf·ft
43
75
lbf·ft
10.1 ± 0.7
17.4 ± 1.4
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