Transport Systems Seacom AG
A 5502 / Rolltrailer 8
0’ 150t
Page 14 / 21
Tightening torque for screws and nuts
Screws and nuts need to be inspected regularly (monthly) or retightened.
Coefficient of friction: µ tot.= 0.12 for screws and nuts without reworking, as well as phosphated
nuts. Tighten by hand!
Tightening torques, if not specified otherwise, can be found in the following tables.
Metric ISO standard thread DIN 13, sheet 13
Size
8.8
10.9
12.9
M4
2,8
4,1
4,8
M5
5,5
8,1
9,5
M6
9,5
14
16,5
M7
15
23
28
M8
23
34
40
M10
46
68
79
M12
79
115
135
M14
125
185
215
M16
195
280
330
M18
280
390
460
M20
390
560
650
M22
530
750
880
M24
670
960
1100
M27
1000
1400
1650
M30
1350
1900
2250
M33
1850
2600
3000
M36
2350
3300
3900
M39
3000
4300
5100
Metric ISO fine thread DIN 13, sheet 13
Size
8.8
10.9
12.9
M 8 x 1
24
36
43
M 9 x 1
36
53
62
M 10 x 1
52
76
89
M 10 x 1.25
49
72
84
M 12 x 1.25
87
125
150
M 12 x 1.5
83
120
145
M 14 x 1.5
135
200
235
M 16 x 1.5
205
300
360
M 18 x 1.5
310
440
520
M 18 x 2
290
420
490
M 20 x 1.5
430
620
720
M 22 x 1.5
580
820
960
M 24 x 1.5
760
1100
1250
M 24 x 2
730
1050
1200
M 27 x 1.5
1100
1600
1850
M 27 x 2
1050
1500
1800
M 30 x 1.5
1550
2200
2550
M 30 x 2
1500
2100
2500
M33 x 1.5
2050
2900
3400
M 33 x 2
2000
2800
3300
M 36 x 1.5
2700
3800
4450
M 36 x 3
2500
3500
4100
M 39 x 1.5
3450
4900
5700
M 39 x 3
3200
4600
5300
