5CS201115OM (rev 00 07/2020) 64
BOLT TORQUE CHART
• Torque values listed are for general use only, based on the strength of the bolt or screw.
DO NOT use these values if a different torque value or tightening procedures is given for a
specic application. For plastic insert or crimped steel type lock nuts, for stainless steel, or for
nuts on u-bolts, see the tightening instructions for the specic application.
• Fasteners must always be replaced with the same grade as specied in the manual parts list.
• Shear bolts are designed to fail under predetermined loads, always replace shear bolts with
identical grades.
• Make sure fasteners threads are clean and start thread engagement properly.
Diameter
(A) (Inches)
Torque Values (Dry)
SAE Grade 2 SAE Grade 5 SAE Grade 8
N-m lb-ft N-m lb-ft N-m lb-ft
1/4 7.4 5.5 12 9 17 12.5
5/16 15 11 24 18 35 26
3/8 27 20 45 33 62 46
7/16 43 32 70 52 102 75
1/2 68 50 108 80 156 115
9/16 95 70 156 115 217 160
5/8 136 100 217 160 305 225
3/4 238 175 380 280 540 400
7/8 238 175 615 455 870 640
•
Diameter (A)
(millimeters)
Torque Values (Dry)
Grade 8.8 Grade 10.9
N-m lb-ft N-m lb-ft
M6 11.3 8.3 16.5 12.2
M8 27.5 20.3 40 29.5
M10 55 40 80 59
M12 95 70 140 105
M14 150 110 220 165
M16 240 175 350 255
SAE Grade 2 SAE Grade 5 SAE Grade 8
Metric Grade 8.8 Metric Grade 10.9
Bolt Torque Chart
To Next Page
Loading...