2.2 Standard Bolts
Thread Diameter
(mm)
M6
M8
M10
M12
2.3 Standard Studs
Thread Diameter
(mm)
M8
M10
2.4 Standard Plugs
Thread Diameter
NPTF 1/16
PT 1/8
PT 1/4, NPTF 1/4
PT 3/8
Remarks: 1. The torque values shown above are for the bolts with spring washers.
2. Do not apply any oil to the bolt threads.
4T
N·m
kgf·m
2.94 to 4.90
0.3 to 0.5
9.80 to 12.7
1.0 to 1.3
17.7 to 24.5
1.8 to 2.5
29.4 to 41.2
3.0 to 4.2
For driving in aluminum materials
N·m
kgf·m
4.90 to 5.90
0.50 to 0.60
12.7 to 14.7
1.3 to 1.5
For aluminum materials
N·m
kgf·m
4.90 to 7.85
0.5 to 0.8
7.85 to 11.8
0.8 to 1.2
19.6 to 29.4
2.0 to 3.0
––
––
Torque
lbf·ft
N·m
2.17 to 3.62
7.89 to 9.80
7.23 to 9.40
14.7 to 21.6
13.0 to 18.1
29.4 to 41.2
21.7 to 30.4
53.9 to 73.5
Torque (tap end)
For driving in ferrous materials
lbf·ft
N·m
3.62 to 4.34
11.8 to 13.7
9.40 to 10.8
21.6 to 25.5
Torque
lbf·ft
N·m
3.62 to 5.79
7.85 to 11.8
5.79 to 8.68
14.7 to 21.6
14.5 to 21.7
34.3 to 44.1
––
53.9 to 73.5
2-7
MAINTENANCE STANDARDS
7T
kgf·m
lbf·ft
0.8 to 1.0
5.79 to 7.23
1.5 to 2.2
10.8 to 15.9
3.0 to 4.2
21.7 to 30.4
5.5 to 7.5
39.8 to 54.2
kgf·m
lbf·ft
1.2 to 1.4
8.68 to 10.1
2.2 to 2.6
15.9 to 18.8
For ferrous materials
kgf·m
lbf·ft
0.8 to 1.2
5.79 to 8.68
1.5 to 2.2
10.8 to 15.9
3.5 to 4.5
25.3 to 32.5
5.5 to 7.5
39.8 to 54.2