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 lb-ft
kg-m
Grade 4
6nun bolt head/nut
1 2.9 -
5.1
0.4 - .07
8nun 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
nun 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
nun bolt head/nut
1.5
25.3 - 39.8 3.5 - 5.5
12
nun
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
-70
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
nun 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
8nun 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
mm 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
nun 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
nun
bolt head/nut
1.25
28.9 - 39.8
4.0 - 5.5
10
mm 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
nun bolt head/nut
1.5 50.6 -65.1
7.0 - 9.0
12
nun bolt head/nut
1.75
43.4
-61.5
6.0 - 8.5
13
nun 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
rom
bolt head/nut
2
101.3 -
159.1
14.0 - 22.0
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
7/16 UNC
44 - 49
6.1
- 6.8
7116
UNF
50 -
55
6.9 - 7.6
112UNC
68
-73
9.4 -
10.1
112
UNF
73
- 80
1O.1-1l.l
WESTERBEKE GENERATORS
74