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TORQUE SCREW SPECIFICATIONS
TIGHTENING SETTINGS OF METRIC BOLTS
BOLT
SIZE
M 5 x 0.8
M 6 x 1
M 8 x 1.25
M 10 x 1.5
M 12 x 1.75
M 14 x 2
M 16 x 2
M 18 x 2.5
M 20 x 2.5
M 24 x 3
Identify the metric bolts by grade which is marked
on the head of the bolt or nut. Higher numbers
indicate a higher resistance.
GENERAL INFORMATION
Screws torque values.
Always replace bolts with others of the same grade. Metric screws have the class
number marked on the head.
Tighten the screws according to the table, unless otherwise indicated in operators
manual. Do not over tighten the screws, as this could cause failure during operation.
Note: DO NOT use these values if a different torque value for a specific application
is specified. The values given are for general use. Periodically check the tightening
of the screws.
5.8 GRADE
Nm LB-FT
4
3
7
5
14
12
33
24
58
42
92
68
145
105
195
145
280
205
480
355
8.8 GRADE
Nm LB-FT
6
5
11
8
26
19
52
39
91
67
145
105
225
165
310
320
440
325
760
560
37
10.9 GRADE
Nm
LB-FT
9
7
15
11
36
27
72
53
125
93
200
150
315
230
405
300
610
450
1050
780
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