Metric Bolt Specifications Bolting into Cast Aluminum
Table 4.10 Metric Bolt Bolting into Cast Aluminum
Bolt Torque
8.8
(Cast Aluminum)
10.9
(Cast Aluminum)
Nominal
Size (A)
ft·lbf
N·m
ft·lbf
N·m
M3
–
–
1
–
M4
–
–
2.6
4
M5
–
–
5.5
8
M6
6
9
9
12
M8
14
20
20
28
M10
28
40
40
55
M12
52
70
73
100
M14
–
–
–
–
M16
–
–
–
–
Figure 4.14: Bolt Grades
Flare-Type Hydraulic Fittings
1. Check
fl
are (A) and
fl
are seat (B) for defects that might
cause leakage.
2. Align tube (C) with
fi
tting (D), and thread nut (E) onto
fi
tting without lubrication until contact has been made
between the
fl
ared surfaces.
3. Torque the
fi
tting nut (E) to the speci
fi
ed number of
fl
ats from
fi
nger tight (FFFT) or to a given torque
value shown in Table
4.11 Flare-Type Hydraulic Tube
.
4. Use two wrenches to prevent
fi
tting (D) from rotating.
Place one wrench on the
fi
tting body (D), and tighten
nut (E) with the other wrench to the torque shown.
5. Assess the
fi
nal condition of the connection.
Figure 4.15: Hydraulic Fitting
169820
112
Revision A
