Tightening Torques For Threaded Connections To Works Standard M 3059 - Man D2868 LE426 Operating Instruction

MAN marine diesel engines D2868 LE4.. / D2862 LE4..
Installation and commissioning

6.8 Tightening torques for threaded connections to Works Standard M 3059

Bolts / nuts with external or internal hex, head without collar or flange
Thread size
x pitch
M4
M5
M6
M7
M8
M8x1
M10
M10x1.25
M10x1
M12
M12x1.5
M12x1.25
M14
M14x1.5
M16
M16x1.5
M18
M18x2
M18x1.5
M20
M20x2
M20x1.5
M22
M22x2
M22x1.5
M24
M24x2
M24x1.5
56
Strength classifications / tightening torque in Nm
at 8.8 / 8
2,5
5,0
9,0
14,0
22,0
23,0
45,0
45,0
50,0
75,0
75,0
80,0
115,0
125,0
180,0
190,0
260,0
270,0
290,0
360,0
380,0
400,0
490,0
510,0
540,0
620,0
680,0
740,0
Carefully read through the Operating Instructions before starting any work!
This particularly applies to the General Safety Instructions section
and the safety instructions in the various chapters.
at 10.9 / 10
4,0
7,5
13,0
20,0
30,0
35,0
65,0
65,0
70,0
105,0
110,0
115,0
170,0
185,0
260,0
280,0
370,0
290,0
410,0
520,0
540,0
570,0
700,0
730,0
770,0
890,0
960,0
1030,0
at 12.9 / 12
4,5
9,0
15,0
25,0
35,0
40,0
75,0
75,0
85,0
125,0
130,0
135,0
200,0
215,0
310,0
330,0
430,0
450,0
480,0
600,0
630,0
670,0
820,0
860,0
900,0
1040,0
1130,0
1220,0