Appendix 3. Tightening Torques - Alamarin Jet COMBI-FRAME AJ 285 Repair Manual

Tightening torques
Repair manual
Appendix 3. Tightening torques
Use the tightening torques from the table 2 when tightening the propulsion
unit screws. The strength grade of an acid-proof A4-80 screw is equivalent to a
class 8.8 screw.
Table 2. Tightening torques of the screws
Thread
M5
M6
M8
M10
M12
M16
(*) The tightening torque in pound-feet (approximate value) is marked in the
table in parentheses after the corresponding value in Nm.
A suitable thread locking compound that is good for all purposes is one of
medium strength, for example. Loctite 242 or similar.
KM/285/EN/1.1.0
Strength grade
8.8
Tightening torque
(Nm) (*)
5.5 (4)
9.6 (7)
23 (17)
46 (34)
79 (58)
145 (107)
10.9
8.1 (6)
14 (10)
34 (25)
67 (49)
115 (85)
215 (159)
12.9
9.5 (7)
16 (12)
40 (30)
79 (58)
135 (100)
250 (184)
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