Mitsubishi 6M70, Workshop Manual

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00-28
• Use specified bolts and nuts. Tighten them to the torques shown below as appropriate, unless otherwise speci-
fied.
• Threads and bearing surfaces shall be dry.
• If the mating nut and bolt (or stud bolt) are different in level of strength, tighten them to the torque specified for the
bolt.
Hexagon Head Bolts and Stud Bolts (Unit: N·m {kgf·m})
Hexagon Head Flange Bolts (Unit: N·m {kgf·m})
Strength
4T 7T 8T
Identification
symbol
Nominal
diameter (stud) (stud) (stud)
M5
2 to 3
{0.2 to 0.3}
–
4 to 6
{0.4 to 0.6}
–
5 to 7
{0.5 to 0.7}
–
M6
4 to 6
{0.4 to 0.6}
–
7 to 10
{0.7 to 1.0}
–
8 to 12
{0.8 to 1.2}
–
M8
9 to 13
{0.9 to 1.3}
–
16 to 24
{1.7 to 2.5}
–
19 to 28
{2.0 to 2.9}
–
M10
18 to 27
{1.8 to 2.7}
17 to 25
{1.8 to 2.6}
34 to 50
{3.5 to 5.1}
32 to 48
{3.3 to 4.9}
45 to 60
{4.5 to 6.0}
37 to 55
{3.8 to 5.7}
M12
34 to 50
{3.4 to 5.1}
31 to 45
{3.1 to 4.6}
70 to 90
{7.0 to 9.5}
65 to 85
{6.5 to 8.5}
80 to 105
{8.5 to 11}
75 to 95
{7.5 to 10}
M14
60 to 80
{6.0 to 8.0}
55 to 75
{5.5 to 7.5}
110 to 150
{11 to 15}
100 to 140
{11 to 14}
130 to 170
{13 to 17}
120 to 160
{12 to 16}
M16
90 to 120
{9 to 12}
90 to 110
{9 to 11}
170 to 220
{17 to 23}
160 to 210
{16 to 21}
200 to 260
{20 to 27}
190 to 240
{19 to 25}
M18
130 to 170
{14 to 18}
120 to 150
{12 to 16}
250 to 330
{25 to 33}
220 to 290
{23 to 30}
290 to 380
{30 to 39}
250 to 340
{26 to 35}
M20
180 to 240
{19 to 25}
170 to 220
{17 to 22}
340 to 460
{35 to 47}
310 to 410
{32 to 42}
400 to 530
{41 to 55}
360 to 480
{37 to 49}
M22
250 to 330
{25 to 33}
230 to 300
{23 to 30}
460 to 620
{47 to 63}
420 to 560
{43 to 57}
540 to 720
{55 to 73}
490 to 650
{50 to 67}
M24
320 to 430
{33 to 44}
290 to 380
{29 to 39}
600 to 810
{62 to 83}
540 to 720
{55 to 73}
700 to 940
{72 to 96}
620 to 830
{63 to 85}
Strength
4T 7T 8T
Identification
symbol
Nominal
diameter
M6
4 to 6
{0.4 to 0.6}
–
8 to 12
{0.8 to 1.2}
–
10 to 14
{1.0 to 1.4}
–
M8
10 to 15
{1.0 to 1.5}
–
19 to 28
{2.0 to 2.9}
–
22 to 33
{2.3 to 3.3}
–
M10
21 to 31
{2.1 to 3.1}
20 to 29
{2.0 to 3.0}
45 to 55
{4.5 to 5.5}
37 to 54
{3.8 to 5.6}
50 to 65
{5.0 to 6.5}
50 to 60
{5.0 to 6.5}
M12
38 to 56
{3.8 to 5.5}
35 to 51
{3.5 to 5.2}
80 to 105
{8.0 to 10.5}
70 to 95
{7.5 to 9.5}
90 to 120
{9 to 12}
85 to 110
{8.5 to 11}
TABLE OF STANDARD TIGHTENING TORQUES