Standard bolts
1. List of standard bolt and nut tightening torques
The tightening torque values in the following table apply
to locations where no tightening torque is specified.
Note
:
・
Those indicated with an asterisk (*) are used
for the internal threaded portion of soft
materials such as castings.
Strength
category
4.8
4T
7T
Bolt head
shape
M6 - M16
Hex bolt
Flange bolt
Hex bolt
Flange bolt
M6 x 1
:
3.9 to 7.8 N
・
m { 0.4 to
0.8 kgf
・
m / 35 to 69 lb
・
in }
:
4.6 to 8.5 N
・
m { 0.5 to
0.9 kgf
・
m / 41 to 75 lb
・
in }
:
4.9 to 9.8 N
・
m { 0.5 to
1.0 kgf
・
m / 43 to 87 lb
・
in }
:
5.7 to 10.6 N
・
m { 0.6
to 1.1 kgf
・
m / 50 to 94
lb
・
in }
M8 x 1.25
:
7.8 to 17.7 N
・
m { 0.8
to 1.8 kgf
・
m / 69 to 157
lb
・
in }
:
10.5 to 19.6 N
・
m { 1.1
to 2.0 kgf
・
m / 93 to 173
lb
・
in }
:
11.8 to 22.6 N
・
m { 1.2
to 2.3 kgf
・
m / 9 to 17 lb
・
ft }
:
13.5 to 25.0 N
・
m { 1.4
to 2.5 kgf
・
m / 10 to 18
lb
・
ft }
M10 x 1.25
:
20.6 to 34.3 N
・
m { 2.1
to 3.5 kgf
・
m / 15 to 25
lb
・
ft }
:
23.1 to 38.5 N
・
m { 2.4
to 3.9 kgf
・
m / 17 to 28
lb
・
ft }
:
27.5 to 46.1 N
・
m { 2.8
to 4.7 kgf
・
m / 20 to 34
lb
・
ft }
:
31.0 to 51.7 N
・
m { 3.2
to 5.3 kgf
・
m / 23 to 38
lb
・
ft }
*M10 x 1.5
:
19.6 to 33.3 N
・
m { 2.0
to 3.4 kgf
・
m / 14 to 25
lb
・
ft }
:
22.3 to 37.2 N
・
m { 2.3
to 3.8 kgf
・
m / 16 to 27
lb
・
ft }
:
27.5 to 45.1 N
・
m { 2.8
to 4.6 kgf
・
m / 20 to 33
lb
・
ft }
:
30.3 to 50.4 N
・
m { 3.1
to 5.1 kgf
・
m / 22 to 37
lb
・
ft }
M12 x 1.25
:
49.0 to 73.5 N
・
m { 5.0
to 7.5 kgf
・
m / 36 to 54
lb
・
ft }
:
54.9 to 82.3 N
・
m { 5.6
to 8.4 kgf
・
m / 40 to 61
lb
・
ft }
:
60.8 to 91.2 N
・
m { 6.2
to 9.3 kgf
・
m / 45 to 67
lb
・
ft }
:
68.1 to 102.1 N
・
m
{ 6.9 to 10.4 kgf
・
m / 50
to 75 lb
・
ft }
*M12 x 1.75
:
45.1 to 68.6 N
・
m { 4.6
to 7.0 kgf
・
m / 33 to 51
lb
・
ft }
:
51.0 to 76.5 N
・
m { 5.2
to 7.8 kgf
・
m / 38 to 56
lb
・
ft }
:
56.9 to 84.3 N
・
m { 5.8
to 8.6 kgf
・
m / 42 to 62
lb
・
ft }
:
62.7 to 94.0 N
・
m { 6.4
to 9.6 kgf
・
m / 46 to 69
lb
・
ft }
M14 x 1.5
:
76.5 to 114.7 N
・
m
{ 7.8 to 11.7 kgf
・
m / 56
to 85 lb
・
ft }
:
83.0 to 124.5 N
・
m
{ 8.5 to 12.7 kgf
・
m / 61
to 92 lb
・
ft }
:
93.2 to 139.3 N
・
m
{ 9.5 to 14.2 kgf
・
m / 69
to 103 lb
・
ft }
:
100.8 to 151.1 N
・
m
{ 10.3 to 15.4 kgf
・
m / 74
to 111 lb
・
ft }
*M14 x 2
:
71.6 to 106.9 N
・
m
{ 7.3 to 10.9 kgf
・
m / 53
to 79 lb
・
ft }
:
77.2 to 115.8 N
・
m
{ 7.9 to 11.8 kgf
・
m / 57
to 85 lb
・
ft }
:
88.3 to 131.4 N
・
m
{ 9.0 to 13.4 kgf
・
m / 65
to 97 lb
・
ft }
:
94.9 to 142.3 N
・
m
{ 9.7 to 14.5 kgf
・
m / 70
to 105 lb
・
ft }
M16 x 1.5
:
104.0 to 157.0 N
・
m
{ 10.6 to 16.0 kgf
・
m / 77
to 116 lb
・
ft }
:
115.6 to 173.3 N
・
m
{ 11.8 to 17.7 kgf
・
m / 85
to 128 lb
・
ft }
:
135.3 to 204.0 N
・
m
{ 13.8 to 20.8 kgf
・
m /
100 to 150 lb
・
ft }
:
150.1 to 225.2 N
・
m
{ 15.3 to 23.0 kgf
・
m /
111 to 166 lb
・
ft }
*M16 x 2
:
100.0 to 149.1 N
・
m
{ 10.2 to 15.2 kgf
・
m / 74
to 110 lb
・
ft }
:
109.4 to 164.2 N
・
m
{ 11.2 to 16.7 kgf
・
m / 81
to 121 lb
・
ft }
:
129.4 to 194.2 N
・
m
{ 13.2 to 19.8 kgf
・
m / 95
to 143 lb
・
ft }
:
142.5 to 213.8 N
・
m
{ 14.5 to 21.8 kgf
・
m /
105 to 158 lb
・
ft }
Service Information Guide (All) 14A-13