215651
275
Revision B
9.1.2
Metric Bolt Specifications
The torque values provided in the following metric bolt torque tables apply to hardware installed dry; that is, hardware
with no grease, oil, or threadlocker on the threads or heads. Do
NOT
grease or oil bolts or cap screws unless directed to do
so in this manual.
$
Figure 9.5: Bolt Grades
Table 9.5 Metric Class 8.8 Bolts and Class 9 Free Spinning Nut
Nominal
Size (A)
Torque (Nm)
Torque (lbf·ft) (*lbf·in)
Min.
Max.
Min.
Max.
3-0.5
1.4
1.6
*13
*14
3.5-0.6
2.2
2.5
*20
*22
4-0.7
3.3
3.7
*29
*32
5-0.8
6.7
7.4
*59
*66
6-1.0
11.4
12.6
*101
*112
8-1.25
28
30
20
23
10-1.5
55
60
40
45
12-1.75
95
105
70
78
14-2.0
152
168
113
124
16-2.0
236
261
175
193
20-2.5
460
509
341
377
24-3.0
796
879
589
651
$
Figure 9.6: Bolt Grades
Table 9.6 Metric Class 8.8 Bolts and Class 9 Distorted
Thread Nut
Nominal
Size (A)
Torque (Nm)
Torque (lbf·ft) (*lbf·in)
Min.
Max.
Min.
Max.
3-0.5
1
1.1
*9
*10
3.5-0.6
1.5
1.7
*14
*15
4-0.7
2.3
2.5
*20
*22
5-0.8
4.5
5
*40
*45
6-1.0
7.7
8.6
*69
*76
8-1.25
18.8
20.8
*167
*185
10-1.5
37
41
28
30
12-1.75
65
72
48
53
14-2.0
104
115
77
85
16-2.0
161
178
119
132
20-2.5
314
347
233
257
24-3.0
543
600
402
444
