TECHNICAL DATA
Torque Specifications
Engine crankshaft bolt | 50 ft/lb (67 Nm) | Standard 5/16" fasteners | 18 ft/lb (25 Nm) |
Deck pulley bolts | 150 ft/lb (203 Nm) | Standard 3/8" fasteners | 33 ft/lb (44 Nm) |
Lug nuts | 75 ft/lb (100 Nm) | Standard 7/16" fasteners | 52 ft/lb (70 Nm) |
Blade bolt | 90 ft/lb (122 Nm) | Standard ½" fasteners | 80 ft/lb (110 Nm) |
Standard ¼" fasteners | 9 ft/lb (12 Nm) |
|
|
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
Shank Size (Diameter in inches, fine or coarse thread)
Size
¼
5/16
3/8
7/16
½
9/16
5/8
¾
7/8
11/8
SAE Grade 5 | SAE Grade 8 | Flangelock Screw | ||||||
|
|
|
|
|
| w/Flangelock Nut | ||
ft./lbs |
| Nm | ft./lbs |
| Nm | ft./lbs |
| Nm |
|
|
| ||||||
9 |
| 12 | 13 |
| 18 |
|
|
|
18 |
| 24 | 28 |
| 38 | 24 |
| 33 |
31 |
| 42 | 46 |
| 62 | 40 |
| 54 |
50 |
| 68 | 75 |
| 108 |
|
|
|
75 |
| 102 | 115 |
| 156 |
|
|
|
110 |
| 150 | 165 |
| 224 |
|
|
|
150 |
| 203 | 225 |
| 305 |
|
|
|
250 |
| 339 | 370 |
| 502 |
|
|
|
378 |
| 513 | 591 |
| 801 |
|
|
|
782 |
| 1060 | 1410 |
| 1912 |
|
|
|
|
|
|
|
|
|
|
|
|
** Grade 5 - Minimum commercial quality (lower quality not recommended)
Grade
Shank Size (Diameter in millimeters, fine or coarse thread)
Size
M4
M5
M6
M7
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
Metric Standard Hardware
Grade 8.8 |
| Grade 10.9 | Grade 12.9 | |||
|
|
|
|
|
| |
ft./lbs |
| Nm | ft./lbs | Nm | ft./lbs | Nm |
1.5 |
| 2 | 2.2 | 3 | 2.7 | 3.6 |
3 |
| 4 | 4.5 | 6 | 5.2 | 7 |
5.2 |
| 7 | 7.5 | 10 | 8.2 | 11 |
8.2 |
| 11 | 12 | 16 | 15 | 20 |
13.5 |
| 18 | 18.8 | 25 | 21.8 | 29 |
24 |
| 32 | 35.2 | 47 | 43.5 | 58 |
43.5 |
| 58 | 62.2 | 83 | 75 | 100 |
70.5 |
| 94 | 100 | 133 | 119 | 159 |
108 |
| 144 | 147 | 196 | 176 | 235 |
142 |
| 190 | 202 | 269 | 242 | 323 |
195 |
| 260 | 275 | 366 | 330 | 440 |
276 |
| 368 | 390 | 520 | 471 | 628 |
353 |
| 470 | 498 | 664 | 596 | 794 |
530 |
| 707 | 474 | 996 | 904 | 1205 |
|
|
|
|
|
|
|
48
