7.1 Standard torques
7.1.1 Standard torques for screw connections
For hex screws in accordance with:
– ISO 4014
– ISO 4017
– ISO 8765
– ISO 8676
For socket head screws in accordance with: ISO 4762.
For hexalobular internal screws (Torx screws) in accordance with: DIN 34800.
Values for a mean friction coefficient of µ = 0.12.
Standard
thread
Nm
ft lb
Nm
ft lb
Nm
ft lb
8.8
10.9
12.9
M 4
3
2.2
4
3
5
3.7
M 5
6
4.4
8
6
10
7.4
M 6
10
7.4
14
10
17
12
M 7
16
12
23
17
27
20
M 8
23
17
34
25
40
29
M 10
46
34
68
50
79
58
M 12
79
58
117
86
135
100
M 14
125
92
185
140
215
160
M 16
195
140
280
210
330
240
M 18
280
210
390
290
460
340
M 20
390
290
560
410
650
480
M 22
530
390
750
550
880
650
M 24
670
490
960
710
1120
830
M 27
1000
740
1400
1030
1650
1220
M 30
1350
1000
1900
1400
2250
1660
M 33
1850
1360
2600
1920
3000
2210
M 36
2350
1730
3300
2430
3900
2880
M 39
3000
2210
4300
3170
5100
3770
Tab. 34
Fine thread
Nm
ft lb
Nm
ft lb
Nm
ft lb
8.8
10.9
12.9
M 8 x 1
25
18
36
27
43
32
M 9 x 1
36
27
53
39
62
46
KD27V12 33521029401_3_1 en 2017-07-01
© 2017 by Kohler Co. All rights reserved.
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