Torque Settings - NC HT1.0 Original Instructions Manual

Use these torque settings only where no torque setting has been specified in the text. Values
are for dry threads and may be within 3% of the figures stated. For lubricated threads the
values should be reduced by one third.
UNF Grade "S" Bolts
Bolt Size
in
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1 1/4
1 1/2
METRIC Grade "8.8" Bolts
M5
M6
M8
M10
M12
M16
M20
M24
M30
M36
METRIC Grade "12.9" Bolts
M8
M10
M12
M14
M16
Note: All bolts are of high tensile strength and must not be replaced by bolts of a lesser
tensile specification.

Torque Settings

Hexagon (A/F) Torque Settings
(mm) in
6.3 7/16
7.9 1/2
9.5 9/16
11.1 5/8
12.7 3/4
14.3 13/16
15.9 15/16
19 1 1/8
22.2 1 5/16
25.4 1 1/2
31.7 1 7/8
38.1 2 1/4
Hexagon (A/F)
mm
5 8
6 10
8 13
10 17
12 19
16 24
20 30
24 36
30 46
36 55
8 13
10 17
12 19
14 22
16 24
Nm lbf ft
14 10
28 20
49 36
78 58
117 87
170 125
238 175
407 300
650 480
970 715
1940 1430
3390 2500
7 5
12 9
28 21
56 42
98 72
244 180
476 352
822 607
1633 1205
2854 2105
48 35
94 69
166 122
320 236
400 295
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