Doosan 12/154, Operation & Maintenance Manual

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78 MAINTENANCE
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TABLE 2 METRIC FASTENERS
TYPICAL RECTANGULAR TORQUE
PATTERN
TYPICAL SQUARE TORQUE PATTERN
TYPICAL CIRCULAR TORQUE PATTERN
CAPSCREW
OR NUT
THREAD SIZE
AND PITCH
NOMINAL DESIGN TORQUE
PROPERTY
GRADE 8.8
(HEAD MARKING)
PROPERTY
GRADE 10.9
(HEAD MARKING)
PROPERTY
GRADE 12.9
(HEAD MARKING)
(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
M20 X 2.5 441 325 610 450 713 526