33
LUBRICATION AND MAINTENANCE
GENERAL 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 moly disulphide greases or other extreme pressure lubricants are used.
This applies to both metric coarse and fine threads.
Bolt Size
Grade No.
Coarse Thread
Fine Thread
Pitch (mm)
N
•
m
kgf
•
cm
Pitch (mm)
N
•
m
kgf
•
cm
M6
4T
1.0
4.9 – 6.9
40 – 70
–
–
–
7T
8.3 – 11.3
85 – 115
10T
11.8 – 15.7
120 – 160
M8
4T
1.25
12.7 – 16.7
130 – 170
1.0
15.2 – 20.1
155 – 205
7T
22.6 – 28.4
230 – 290
26.5 – 34.3
270 – 350
10T
28.4 – 36.3
290 – 270
30.4 – 40.2
310 – 410
M10
4T
1.5
25.5 – 33.3
260 – 340
1.25
28.4 – 36.3
290 – 370
7T
44.1 – 55.9
450 – 570
49.0 – 62.8
500 – 640
10T
53.9 – 69.6
550 – 710
57.9 – 73.5
590 – 750
M12
4T
1.75
37.3 – 47.1
380 – 480
1.25
43.1 – 45.9
440 – 560
7T
65.7 – 83.4
670 – 850
74.5 – 94.1
760 – 960
10T
92.2 – 116.0
940 – 1180
99.0 – 127.0
1010 – 1290
M14
4T
2.0
62.8 – 80.4
640 – 820
1.5
69.6 – 87.3
710 – 890
7T
104.0 – 131.0
1060– 1340
117.0 – 148.0
1190 – 1510
10T
139.0 – 175.0
1420 – 1780
147.0 – 186.0
1500 – 1900
M20
4T
2.5
144.0 – 179.0
1470 – 1830
1.5
172.0 – 211.0
1750 – 2150
7T
240.0 – 289.0
2450 – 2950
275.0 – 333.0
2800 – 3400
10T
363.0 – 441.0
3700 – 4500
397.0 – 485.0
4050 – 4950
