SPECIFICATIONS
89 AU103170 H5B
TORQUE SPECIFICATIONS - DECIMAL HARDWARE
Use the torques in this chart when special torques are not given. These torques apply to fasteners with both UNC and
UNF threads as received from suppliers dry, or when lubricated with engine oil. Not applicable if special graphites,
Molydisulfide greases, or other extreme pressure lubricants are used.
Grade 5 Bolts, Nuts, and Studs
Size
Newton
metres
Pound-
Inches
1/4 inch 10 to 12 91 to 103
5/16 inch 21 to 24 188 to 212
3/8 inch 38 to 43 336 to 378
Pound-
Feet
7/16 inch 61 to 69 45 to 51
1/2 inch 94 to 104 68 to 76
9/16 inch 132 to 149 98 to 110
5/8 inch 183 to 210 138 to 155
3/4 inch 325 to 370 242 to 270
7/8 inch 530 to 595 390 to 435
1.0 inch 790 to 890 585 to 655
1-1/8 inch 980 to 1100 725 to 805
1-1/4 inch 1385 to 1555 1020 to 1145
1-3/8 inch 1810 to 2030 1335 to 1495
1-1/2 inch 2400 to 2700 1770 to 1990
Grade 8 Bolts, Nuts, and Studs
Size
Newton
metres
Pound-
Inches
1/4 inch 15 to 16 130 to 145
5/16 inch 30 to 34 268 to 301
3/8 inch 54 to 60 474 to 534
Pound-
Feet
7/16 inch 86 to 97 63 to 71
1/2 inch 132 to 149 96 to 110
9/16 inch 191 to 213 140 to 155
5/8 inch 260 to 293 190 to 215
3/4 inch 480 to 515 340 to 380
7/8 inch 745 to 835 550 to 615
1.0 inch 1120 to 1280 825 to 925
1-1/8 inch 1585 to 1785 1170 to 1315
1-1/4 inch 2215 to 2235 1650 to 1855
1-3/8 inch 2930 to 3295 2160 to 2430
1-1/2 inch 3895 to 4375 2870 to 3225
NOTE: Use thick nuts with Grade 8 bolts.
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