4-60 Inspection, Maintenance and Adjustment
022-00029AE Operation and Maintenance Manual
BOLT TORQUE CHART
Tightening Torque Specifications for Metric Bolts (For coated threads, pre-lubricated assemblies)
Grade
Gr. 8.8
Gr. 10.9
Gr. 12.9
Dia.
Kg•m
ft lb
Kg•m
ft lb
Kg•m
ft lb
5 mm x std
0.59
4.3
0.79
5.7
1.0
7.2
6 mm x std
1.00
7.3
1.38
10
1.66
12
8 mm x std
2.49
18
3.46
25
4.15
30
8 mm x 1.0
2.76
20
3.87
28
4.56
33
10 mm x std
4.84
35
6.92
50
8.30
60
10 mm x 1.0
4.84
35
7.05
51
8.30
60
12 mm x std
8.57
62
11.89
86
14.52
105
12 mm x 1.5
9.00
65
12.59
91
14.94
108
14 mm x std
13.55
98
18.95
137
23.10
167
14 mm x 1.5
14.94
108
21.02
152
24.89
180
16 mm x std
20.88
151
29.46
213
35.54
257
16 mm x 1.5
22.54
163
31.53
228
38.03
275
18 mm x std
28.90
209
40.52
293
48.41
350
18 mm x 1.5
32.50
235
45.92
332
55.04
398
20 mm x std
40.94
296
57.95
419
69.01
499
20 mm x 1.5
46.05
333
64.03
463
77.03
557
22 mm x std
54.90
397
77.86
563
93.08
673
22 mm x 1.5
61.00
441
86.02
622
105.00
759
24 mm x std
71.00
513
100.00
723
120.00
868
24 mm x 2.0
78.00
564
109.95
795
130.00
940
27 mm x 2.0
115.06
832
160.00
1157
195.00
1410
