TORQUE VALUE CHARTS
7-2
Bolts
Always tighten fittings to the values below unless a different torque value is specified. Fasteners must
always be replaced with the same grade. Make sure fitting threads are clean and threads are engaged
properly. All torque values are adopted from SAE J1701 and SAE J1701M.
SAE Series Torque Value Chart
Metric Series Torque Value Chart
A = Bolt Diameter
SAE Grade 2
(No Markings)
SAE Grade 5
(3 Radial Dashes)
SAE Grade 8
(6 Radial Dashes)
A
Diameter
(Inches)
Wrench
Size
GRADE
SAE 2 SAE 5 SAE 8
lb-ft N•m lb-ft N•m lb-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
Diameter &
Thread Pitch
(Millimeters)
Metric Grade
8.8
Metric Grade
10.9
Metric Grade
8.8
Metric Grade
10.9
Diameter &
Thread Pitch
(Millimeters)
Wrench
Size
Course Thread Fine Thread
Metric 8.8 Metric 10.9 Metric 8.8 Metric 10.9
N•m lb-ft N•m lb-ft N•m lb-ft N•m lb-ft
6 x 1.0 10 8 6 11 8 8 6 11 8 6 x 1.0
8 x 1.25 13 20 15 27 20 21 16 29 22 8 x 1.0
10 x 1.5 16 392954404130574210 x 1.25
12 x 1.75 18 68 50 94 70 75 55 103 76 12 x 1.25
14 x 2.0 21 109 80 151 111 118 87 163 120 14 x 1.5
16 x 2.0 24 169 125 234 173 181 133 250 184 16 x 1.5
18 x 2.5 27 234 172 323 239 263 194 363 268 18 x 1.5
20 x 2.5 30 330 244 457 337 367 270 507 374 20 x 1.5
22 x 2.5 34 451 332 623 460 495 365 684 505 22 x 1.5
24 x 3.0 36 571 421 790 583 623 459 861 635 24 x 2.0
30 x 3.0 46 1175 867 1626 1199 1258 928 1740 1283 30 x 2.0
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