KINSHOFER TR07 - Tightening Torques

Maintenance and service
30.03.2020
TR07-TR11-TR14-TR19-TR25
63
8.2. Tightening torques
Check bolted connections and tighten if necessary.
Cylinder and hexagon head cap screws/nuts
[Friction coefficient 0.125]
Quality class
8.8
10.9
12.9
8.8
10.9
12.9
Thread
[metric]
SW
[mm]
Tightening torques
[Nm]
Tightening torques
[ft-lbs]
M5
8
5.8
8.1
9.7
4.3
6
7.2
M6
10
10
14
17
7.5
10.5
12.5
M8
13
24
34
40
20
25
30
M10
17
48
67
81
35
50
60
M12
19
83
117
140
60
85
105
M14
22
132
185
220
95
135
160
M16
24
200
285
340
150
210
250
M18
27
275
390
470
205
290
345
M20
30
390
550
660
290
405
485
M22
34
530
745
890
390
550
656
M24
36
675
950
1140
500
700
840
M27
41
995
1400
-
734
1032
-
M30
46
1350
1900
-
995
1400
-
M33
50
1830
2580
-
1350
1903
-
M36
55
2360
3310
-
1740
2440
-
M39
60
3050
4290
-
2250
3164
-
M42
65
-
4500
-
-
3320
-
M48
-
-
6500
-
-
4795
-
Locking screws/nuts
[Friction coefficient 0.125]
Type
Tensilock screws/nuts
Ribbed screws/nuts
Quality class
Class 80
Class 100
Class 100
Carrier material
Steel
Cast iron
Steel
Cast iron
Steel
Cast iron
Thread
[metric]
SW
[mm]
Tightening torques
[Nm/ft-lbs]
M6
10
16 / 11.8
13 / 9.6
21 / 15.5
16 / 11.8
19 / 14
16 / 11.8
M8
13
34 / 25.1
28 / 20.7
44 / 32.5
36 / 26.6
42 / 31
35 / 25.8
M10
17
58 / 42.8
49 / 36.1
75 / 55.3
64 / 47.2
85 / 62.7
75 / 55.3
M12
19
97 / 71.5
83 / 61.2
120 / 88.5
105 / 77.4
130 / 95.9
115 / 84.8
M14
22
155 / 114.3
130 / 95.9
185 / 136.4
170 / 125.4
230 / 169.6
200 / 147.5
M16
24
215 / 158.6
195 / 143.8
280 / 206.5
260 / 191.8
330 / 243.4
300 / 221.3