66 Appendix
MAN1331
(
09/29/22
)
BOLT TORQUE CHART
Always tighten hardware to these values unless a different torque value or tightening procedure is listed for
a specic application.
Fasteners must always be replaced with the same grade as specied in the manual parts list.
Always use the proper tool for tightening hardware: SAE for SAE hardware and Metric for metric hardware.
Make sure fastener threads are clean and you start thread engagement properly.
All torque values are given to specications used on hardware dened by SAE J1701 MAR 99 & J1701M JUL 96.
SAE SERIES TORQUE CHART
SAE Bolt Head Identication
SAE Grade 2
(No Dashes)
SAE Grade 5
(3 Radial Dashes)
SAE Grade 8
(6 Radial Dashes)
Diameter (Inches) Wrench Size
Marking on Head
SAE 2 SAE 5 SAE 8
lbs-ft N-m lbs-ft N-m lbs-ft N-m
1/4" 7/16" 6 8 10 13 14 18
5/16" 1/2" 12 17 19 26 27 37
3/8" 9/16" 23 31 35 47 49 67
7/16" 5/8" 36 48 55 75 78 106
1/2" 3/4" 55 75 85 115 120 163
9/16" 13/16" 78 106 121 164 171 232
5/8" 15/16" 110 149 170 230 240 325
3/4" 1-1/8" 192 261 297 403 420 569
7/8" 1-5/16" 306 416 474 642 669 907
1" 1-1/2" 467 634 722 979 1020 1383
Typical Washer Installations
Lock Washer
Flat Washer
Bolt
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