68 ADJUSTMENT
I
ADJUSTMENT
GENERAL
TORQUE
SPECIFICATION
American standard cap screws
Metric cap screws
with UNC or UNF threads
GR.5
GR.8
Class 8.8
Class 10.9
SAE
grade No.
(g
®
Property class
0
e
I
......
(ft-Ibs) 8 - 9.6 12 - 14.4 (ft-Ibs)
7.2 - 8.3
1/4
(N-m)
10.7 - 12.9
16.1
-19.3
M6
(N-m)
9.81-11.3
(kgf-m)
1.11
- 1.33 1.66 - 1.99 (kgf-m) 1.0 - 1.15
(ft-Ibs)
17-20.5
24 - 29 (ft-Ibs)
17.4 - 20.2 21.7 - 25.3
5/16 (N-m)
23.1-27.8
32.5 - 39.3 M8
(N-m) 23.6 - 27.4 29.4 - 34.3
(kgf-m) 2.35 - 2.84
3.31
- 4.01 (kgf-m) 2.4 - 2.8 3.0 - 3.5
(ft-Ibs) 35 - 42 45 - 54 (ft-Ibs)
35.5-41.2
44.9 -
52.1
3/8 (N-m) 47.5 - 57.0
61.0
- 73.2
M10
(N-m) 48.1 - 55.8 60.8 - 70.5
(kgf-m) 4.84 - 5.82
6.22 - 7.47
(kgf-m)
4.9 - 5.7 6.2 - 7.2
(ft-Ibs)
56 - 66
75
-
90
(ft-Ibs)
57.2 - 66.5 76.0 - 86.8
7/16 (N-m) 75.9 - 89.5
101.7 - 122 M12 (N-m) 77.5 -
90.1
103 - 117
(kgf-m)
7.74-9.12
10.37 - 12.44 (kgf-m)
7.9 - 9.2
10.5 - 12.0
(ft-Ibs)
80
- 96
110 - 132 (ft-Ibs) 91.2
-108
123 - 144
1/2 (N-m)
108.5 - 130.2 149.2 - 179.0 M14
(N-m) 124 - 147 167 - 196
(kgf-m)
11.07 - 13.29
15.22 - 18.27 (kgf-m) 12.6 -
15.0 17.0 - 20.0
(ft-Ibs)
110-
132 160 - 192 (ft-Ibs) 145 - 166
192 - 224
9/16 (N-m) 149.2 -
179.0 217 - 260.4 M16
(N-m)
196 - 225 260 - 303
(kgf-m) 15.22 - 18.27 22.14 - 26.57
(kgf-m)
20.0 - 23.0 26.5 - 31.0
(ft-Ibs) 150
- 180 220 - 264
5/8
(N-m)
203.4 - 244.1
298.3 -
358.0
(kgf-m) 20.75 - 24.91 30.44 - 36.53
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