Shibaura CM284 - Chapter 2. ENGINE

6
GENERAL METRIC BOLT TORQUE SPECIFICATION TABLE
USE THE FOLLOWING TORQUES WHEN SPECIAL TORQUES ARE NOT GIVEN
NOTE : These values apply to fasteners as received from supplier, dry, or when lubricated
with normal engine oil. They do not apply if special graphited or molly disulphide grasses
or other extreme pressure lubricants are used.
Coarse Thread Fine Thread
Bolt Size Grade No. Pitch (mm)
N
ewton Meters Pitch (mm)
N
ewton-Meters
M6
4T
1.0
4.9 – 6.9
– – 7T 8.3 – 11.3
10T 11.7 – 15.7
M8
4T
1.25
12.7 – 16.7
1.0
15.2 – 20.1
7T 22.6 – 28.4 26.5 – 34.3
10T 28.5 – 36.3 30.4 – 40.2
M10
4T
1.5
25.5 – 33.3
1.25
28.4 – 36.2
7T 44.1 – 55.9 49.0 – 62.8
10T 54.0 – 69.6 57.9 – 73.5
M12
4T
1.75
37.3 – 47.1
1.25
43.1 – 54.9
7T 65.7 – 83.4 74.5 – 94.1
10T 92.2
–
116 99.0
–
127
M14
4T
2.0
62.8 – 80.4
1.5
69.6 – 87.3
7T 104 – 131 117 – 148
11T 139 – 175 147 – 186
M16
4T
2.0
86.3 – 110
1.5
91.2 – 115
7T 149
–
184 157
–
192
11T 206 – 255 221 – 270
M18
4T
2.0
114 – 141
1.5
131 – 163
7T 196 – 235 230 – 279
11T 275 – 333 299 – 368
M20
4T
2.5
144 – 179
1.5
172 – 211
7T 240 – 289 275 – 333
11T 363 – 441 397 – 485