FX85, FX110, FX140
Skidding Winch
Specifications
53
11.2 Bolt Torque
IMPORTANT! If you replace hardware, use fasteners of
the same grade.
IMPORTANT! The torque specifications in these tables
are for non-greased or non-oiled threads. Do not grease
or oil fastener threads unless otherwise indicated. When
using a thread lock, increase the specified torque 5%.
Bolt grades are identified by the marks on top
of the bolt head.
These bolt torque specification tables provide the correct
torque settings for common bolts and capscrews. Tighten
all bolts to the torque that is specified in the table, unless
otherwise indicated. Check the bolt tightness periodically.
Imperial Bolt Torque Specifications
Bolt
Diameter
Torque
SAE Gr. 2 SAE Gr. 5 SAE Gr. 8
lbf•ft N•m lbf•ft N•m lbf•ft N•m
1/4 inch 6 8 9 12 12 17
5/16 inch 10 13 19 25 27 36
3/8 inch 20 27 33 45 45 63
7/16 inch 30 41 53 72 75 100
1/2 inch 45 61 80 110 115 155
9/16 inch 60 95 115 155 165 220
5/8 inch 95 128 160 215 220 305
3/4 inch 165 225 290 390 400 540
7/8 inch 170 230 420 570 650 880
Metric Bolt Torque Specifications
Bolt
Diameter
Torque
Gr. 8.8 Gr. 10.9
lbf•ft N•m lbf•ft N•m
M3 0.4 0.5 1.3 1.8
M4 2.2 3 3.3 4.5
M6 7 10 11 15
M8 18 25 26 35
M10 37 50 52 70
M12 66 90 92 125
M14 83 112 116 158
M16 166 225 229 310
M20 321 435 450 610
M30 1,103 1,495 1,550 2,100
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