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Engine crankshaft bolt 50 ft/lb (67 Nm)
Deck pulley bolts 75 ft/lb (100 Nm)
Lug nuts 75 ft/lb (100 Nm)
Blade bolt 55 ft/lb (75 Nm)
Standard ¼" fasteners 9 ft/lb (12 Nm)
Standard
5
/16" fasteners 18 ft/lb (25 Nm)
Standard
3
/8" fasteners 33 ft/lb (44 Nm)
Standard
7
/16" fasteners 52 ft/lb (70 Nm)
Standard ½” fasteners 80 ft/lb (110 Nm)
Torque Specifications
HEX HEAD CAP SCREWS
The torque values shown should be used as a general guideline when specific torque values are not given.
U.S. Standard Hardware
Grade SAE Grade 5 SAE Grade 8 Flangelock Screw
w/Flangelock Nut
Size ft./lbs Nm ft./lbs Nm ft./lbs Nm
Shank Size (Diameter in inches, fine
or coarse thread)
¼
9 12 13 18
5
/16
18 24 28 38 24 33
3
/8
31 42 46 62 40 54
7
/16
50 68 75 102
½
75 102 115 156
9
/16
110 149 165 224
5
/8
150 203 225 305
¾
250 339 370 502
7
/8
378 512 591 801
1
1
/8
782 1060 1410 1912
** Grade 5 - Minimum commercial quality (lower quality not recommended)
Metric Standard Hardware
Grade Grade 8.8 Grade 10.9 Grade 12.9
Size ft./lbs Nm ft./lbs Nm ft./lbs Nm
Shank Size (Diameter in inches, fine or coarse thread)
M4 1.5 2 2.2 3 2.7 3.7
M5 3 4 4.5 6 5.2 7
M6 5.2 7 7.5 10 8.2 11
M7 8.2 11 12 16 15 20
M8 13.5 18 18.8 25 21.8 30
M10 24 33 35.2 48 43.5 59
M12 43.5 59 62.2 84 75 102
M14 70.5 96 100 136 119 161
M16 108 146 147 199 176 239
M18 142 193 202 274 242 328
M20 195 264 275 373 330 447
M22 276 374 390 529 471 639
M24 353 478 498 675 596 808
M27 530 719 735 996 904 1226
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TECHNICAL DATA