16 Appendix Bolt Torque & Size Charts (Rev. 8/14/2002)

BOLT TORQUE CHART

Always tighten hardware to these values unless a different torque value or ti ghtening procedure is listed for a specific
application.
Fasteners must always be replaced with the same grade as specified in the manual parts list.
Always use the proper tool for tightening hardware: SAE for SAE hardware and Metri c for metric hardware.
Make sure fastener threads are clean and you start thread engagement prope rly.
All torque values are given to specifications used on hardware define d by SAE J1701 & J1701M JUL96.
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”121719262737
3/8” 9/16” 23 31 35 47 49 67
7/16”5/8”3648557578106
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
A

SAE SERIES

TORQUE

CHART

SAE Bolt Head
Identification
SAE Grade 2
(No Dashes) SAE Grade 5
(
3 Radial Dashes
)
SAE Grade 8
(
6 Radial Dashes
)
Diameter &
Thread Pitch
(Millimeters) Wrench
Size
COARSE THREAD FINE THREAD
Diameter &
Thread Pitch
(Millimeters)
MARKING ON HEAD MARKING ON HEAD
Metric 8.8 Metric 10.9 Metric 8.8 Metric 10.9
N-m lbs-ft N-m lbs-ft N-m lbs-ft N-m lbs-ft
6 x 1.0 10 mm 8 6 11 8 8 6 11 8 6 x 1.0
8 x 1.25 13 mm 20 15 27 20 21 16 29 22 8 x 1.0
10 x 1.5 16 mm 39 29 54 40 41 30 57 42 10 x 1.25
12 x 1.75 18 mm 68 50 94 70 75 55 103 76 12 x 1.25
14 x 2.0 21 mm 109 80 151 111 118 87 163 120 14 x 1.5
16 x 2.0 24 mm 169 125 234 173 181 133 250 184 16 x 1.5
18 x 2.5 27 mm 234 172 323 239 263 194 363 268 18 x 1.5
20 x 2.5 30 mm 330 244 457 337 367 270 507 374 20 x 1.5
22 x 2.5 34 mm 451 332 623 460 495 365 684 505 22 x 1.5
24 x 3.0 36 mm 571 421 790 583 623 459 861 635 24 x 2.0
30 x 3.0 46 mm 1175 867 1626 1199 1258 928 1740 1283 30 x 2.0

METRIC SERIES

TORQUE

CHART

Metric Bolt Head
Identification
8.8
Metric
Grade 10.9
10.9
Metric
Grade 8.8
A
Typical Washer Installations
Bolt Lock Washer Flat Washer
Nut 8/9/00
A
A
A