Mitsubishi S4Q

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Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004
TIGHTENING TORQUES
ENGLISH
MAINTENANCE STANDARDS
36.2 Standard Bolts
36.3 Standard Studs
36.4 Standard Plugs
Thread Dia. x Pitch mm (M-thread)
Torque
4T 7T
N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M6 x 1.0 4 ± 1 0.4 ± 0.1 3 ± 1 9 ± 1 0.9 ± 0.1 7 ± 1
M8 x 1.25 12 ± 1 1.2 ± 0.1 9 ± 1 18 ± 3 1.85 ± 0.35 13 ± 3
M10 x 1.25 22 ± 3 2.2 ± 0.3 16 ± 2 35 ± 6 3.6 ± 0.6 26 ± 4
M12 x 1.25 35 ± 6 3.6 ± 0.6 26 ± 4 64 ± 10 6.5 ± 1 47 ± 7
Thread Dia. x Pitch mm (M-thread)
Torque (tap end)
For driving in aluminium materials For driving in ferrous materials
N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M8 x 1.25 7.4 ± 0.8 0.75 ± 0.1 5.4 ± 0.6 13 ± 1 1.3 ± 0.1 9 ± 1
M10 x 1.5 14 ± 1 1.4 ± 0.1 10 ± 1 24 ± 2 2.4 ± 0.2 17 ± 1
Thread Dia. x Pitch
Torque
For aluminium materials For ferrous materials
N·m kgf·m lbf·ft N·m kgf·m lbf·ft
NPTF 1/16 6 ± 1.5 0.65 ± 0.15 4.7 ± 1 10 ± 2 1.0 ± 0.2 7 ± 1
PT 1/8 10 ± 2 1.0 ± 0.2 7 ± 1 18 ± 3 1.85 ± 0.35 13 ± 3
PT 1/8, NPTF 1/4 25 ± 5 2.5 ± 0.5 18 ± 4 39 ± 5 4.0 ± 0.5 29 ± 4
PT 3/8 __ __ __ 64 ± 10 6.5 ± 1 47 ± 7