Tightening torque – general bolt
NOTE:
These values are only applicable when torque for a general bolt is not listed in the "Important Fasteners"
table.
TYPE OF BOLT
(Conventional or "4" marked bolt)
(Stainless steel bolt)
(7 marked or
marked bolt)
GENERAL INFORMATION
TIGHTENING TORQUE
THREAD
DIAMETER
N . m
2 – 4
5 mm
6 mm
4 – 7
8 mm
10 – 16
10 mm
22 – 35
5 mm
2 – 4
6 mm
6 – 10
8 mm
15 – 20
34 – 41
10 mm
3 – 6
5 mm
6 mm
8 – 12
8 mm
18 – 28
10 mm
40 – 60
1-17
kg-m
Ib-ft
0.2 – 0.4
1.5 – 3.0
0.4 – 0.7
3.0 – 5.0
1.0 – 1.6
7.0 – 11.5
2.3 – 3.5
16.0 – 25.5
0.2 – 0.4
1.5 – 3.0
0.6 – 1.0
4.5 – 7.0
1.5 – 2.0
11.0 – 14.5
3.4 – 4.1
24.5 – 29.5
0.3 – 0.6
2.0 – 4.5
0.8 – 1.2
6.0 – 8.5
1.8 – 2.8
13.0 – 20.0
4.0 – 6.0
29.0 – 43.5