MAINTENANCE
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C en
TABLE 2
METRIC FASTENERS
NOMINAL DESIGN TORQUE
PROPERTY
GRADE 8.8
(HEAD MARKING)
PROPERTY
GRADE 10.9
(HEAD MARKING)
PROPERTY
GRADE 12.9
(HEAD MARKING)
TYPICAL RECTANGULAR TORQUE
PATTERN
CAPSCREW
OR NUT
THREAD SIZE
AND PITCH
TYPICAL SQUARE TORQUE
PATTERN
(Nm.)
(FT
−
LBF)
(Nm.)
(FT
−
LBF)
(Nm.)
(FT
−
LBF)
M6 X 1.0
11
8
15
11
18
13
M8 X 1.25
26
19
36
27
43
31
M10 X 1.5
52
38
72
53
84
62
M12 X 1.75
91
67
126
93
147
109
M14 X 2
145
107
200
148
234
173
M16 X 2
226
166
313
231
365
270
TYPICAL CIRCULAR TORQUE
PATTERN
M20 X 2.5
441
325
610
450
713
526
