Operator`s manual
TABLE OF STANDARD HARDWARE TIGHTENING TORQUES
Unless
stated
otherwise
for
a specific assembly, use
the
following
torque
values when tightening
standard
hardware.
Pitch
Ib-ft kg-m
Grade
4
6mm
bolt head/nut
1 2.9 - 5.1
0.4
- .07
8mm
bolt head/nut
1.25
7.2 - 11.61.0 - 1.6
10
mm
bolt head/nut
1.25 13.7 - 22.4
1.9 - 3.1
10
mm
bolt head/nut
1.5 13.0
-21.7
1.8 -
3.0
12
mm
bolt head/nut
1.25
(ISO)
25.3 - 39.8 3.5 - 5.5
12
mm
bolt head/nut
1.5 25.3 - 39.8 3.5 - 5.5
12
mm
bolt head/nut
1.75
21.7
- 36.2
3.0 - 5.0
13
mm
bolt head/nut
1.5 32.5 - 50.6 4.5 -
7.0
14 mm bolt head/nut
1.5
36.2-57.9
5.0 -
8.0
14
mm
bolt head/nut
2 34.0 - 55.7
4.7
-7.7
16
mm
bolt head/nut
1.5
54.2 - 79.6
7.5-11.0
16
mm
bolt head/nut
2
51.4
-76.7
7.1
-10.6
Grade
6T
6mm
bolt head/nut
1 4.3 - 6.5
0.6 -
0.9
8mm bolt head/nut
1.25
10.8 - 15.9 1.5 - 2.2
10
mm
bolt head/nut
1.25
21.7
- 32.5 3.0 - 4.5
10
nun
bolt head/nut
1.5 19.5 - 30.4
2.7 - 4.2
12
mm
bolt head/nut
1.25 (ISO) 36.2 - 57.9
5.0 - 8.0
12
mm bolt head/nut
1.5
36.2 - 50.6 5.0 -
7.0
12
mm
bolt head/nut
1.75
34.7 -
49.2
4.8
-
6.8
Grade
7T,
8T
and 8.8
6mm
bolt head/nut
1
5.8 - 8.7
0.8
- 1.2
8mm
bolt head/nut
1.25 14.5 -
21.7
2.0 - 3.0
10
mm
bolt
head/nut
1.25 28.9 - 39.8
4.0
- 5.5
10
nun
bolt
head/nut
1.5 26.8 - 37.6
3.7 - 5.2
12
mm
bolt head/nut
1.25
(ISO)
54.2 - 75.9 7.5 - 10.5
12
mm
bolt head/nut
1.5 50.6 -65.1
7.0
- 9.0
12
mm
bolt head/nut
1.75
43.4
-61.5
6.0
- 8.5
13 mm bolt head/nut
1.5
57.9 - 86.8
8.0 - 12.0
14 mm bolt head/nut
1.5
72. 3
-108.5
10.0 - 15.0
14
mm bolt head/nut
2
68.7
-101.3
9.5 - 14.0
16 mm bolt head/nut
1.5
108.5 - 166.4
15.0 -
23.0
16 mm bolt head/nnt
2
101.3-159.1
14.0 -
220
Grade
5
cap
screw
1/4 UNC
9 -
11
1.2 - 1.5
114
UNF
11
- 13 1.5 - 1.8
5116
UNC
18 -
20 2.5 - 2.8
5116
UNF
21
- 23
2.9 - 3.2
3/8 UNC
28 - 33
3.7
- 4.6
3/8
UNF
30 - 35
4.1-4.8
7116
UNC
44 - 49
6.1 -
6.8
7116
UNF
50 - 55
6.9
- 7.6
112
UNC
68 - 73
9.4 - 10.1
112
UNF
73 - 80
10.1-11.1
WESTERBEKE GENERATORS
92