2 - 1
Section 1
9803/8550
Section 1
2 - 1
Issue 2*
Torque Settings
Use only where no torque setting is specified in the text. Values are for dry threads and may be within three per cent of the
figures stated. For lubricated threads the values should be REDUCED by one third.
UNF Grade 'S' Bolts
Bolt Size
Hexagon (A/F)
Torque Settings
in
(mm)
in
Nm
kgf m
lbf ft
1
/
4
(6.3)
7
/
16
14
1.4
10
5
/
16
(7.9)
1
/
2
28
2.8
20
3
/
8
(9.5)
9
/
16
49
5.0
36
7
/
16
(11.1)
5
/
8
78
8.0
58
1
/
2
(12.7)
3
/
4
117
12.0
87
9
/
16
(14.3)
13
/
16
170
17.3
125
5
/
8
(15.9)
15
/
16
238
24.3
175
3
/
4
(19.0)
1
1
/
8
407
41.5
300
7
/
8
(22.2)
1
5
/
16
650
66.3
480
1
(25.4)
1
1
/
2
970
99.0
715
1
1
/
4
(31.7)
1
7
/
8
1940
198.0
1430
1
1
/
2
(38.1)
2
1
/
4
3390
345.0
2500
Metric Grade 8.8 Bolts
Bolt Size
Hexagon (A/F)
Torque Settings
in
(mm)
in
Nm
kgf m
lbf ft
M5
(5)
8
7
0.7
5
M6
(6)
10
12
1.2
9
M8
(8)
13
28
3.0
21
M10
(10)
17
56
5.7
42
M12
(12)
19
98
10
72
M16
(16)
24
244
25
180
M20
(20)
30
476
48
352
M24
(24)
36
822
84
607
M30
(30)
46
1633
166
1205
M36
(36)
55
2854
291
2105
Note:
All bolts used on JCB machines are high tensile and must not be replaced by bolts of a lesser tensile specification.
*
Summary of Contents for 1CX
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