Kelly 12X, Operating Manual

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24
Bolt Torque Settings
Bolt
Type
Wheel nut U Bolt Class 8.8 Bolt
Class
10.9 Bolt
Grade
8 Bolt
Bolt Size
M18 M20 1/2” 9/16” M10 M12 M16 M10 M12 M16 M20 M24 M20 M24 1” UNF
Ft lb
255 265 90 100 22 36 55 32 48 140 190 270 300 350 849
Nm
345 360 125 140 30 50 75 44 65 190 260 370 406 475 1151
[1] When fitting a wheel & tire to a hub, tighten the wheel nuts in a star pattern to the correct tension. To
achieve this, choose a wheel nut & tighten, then proceed to the opposite side of the hub to the next wheel
nut & tighten & so on until all wheel nuts are tight. Then repeat the procedure to check that all nuts are
tight. Do not use impact tools to tighten wheel nuts. For a guide to the correct tension of the wheel nuts
please use the appropriate tension for your size wheel nuts from the Bolt Torque Settings table.
Torque values are for dry threads and surfaces however it is permissible to apply a small amount of anti-
corrosive oil to the threads.