BOLT TORQUE CHART
After every ten (10) hours of operation, check all hardware and tighten where required.
SAE Series Torque Chart
DO NOT use these values if a different torque value or tightening procedure is listed for a specific application. Torque values listed are for general use only.
Fasteners should be replaced with the same grade.
Make sure fastener threads are clean and you properly start thread engagement. This will prevent them from failing when tightening.
SAE |
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Bolt Head |
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Identification | SAE Grade 2 | SAE Grade 5 | SAE Grade 8 |
| (No Dashes) | (3 Radial Dashes) | (6 Radial Dashes) |
Bolt
Diameter
“A”
1/4”
5/16”
3/8”
7/16”
1/2”
9/16”
5/8”
3/4”
7/8”
1”
Wrench
Size
7/16”
1/2”
9/16”
5/8”
3/4”
13/16”
15/16”
| SAE 2 |
6 | (8) |
13 | (18) |
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23 | (31) |
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37 | (50) |
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57 | (77) |
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82 | (111) |
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111 | (150) |
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200 | (270) |
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280 | (380) |
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350 | (475) |
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450 | (610) |
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600 | (815) |
675(915)
920(1250)
MARKING ON HEAD
SAE 5
11 | (15) |
21 | (28) |
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38 | (52) |
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55 | (75) |
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85 | (115) |
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125 | (170) |
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175 | (240) |
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300 | (410) |
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450 | (610) |
680(925)
885(1200)
1255 | (1700) |
1620 | (2200) |
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2200 | (2900) |
| SAE 8 | ||
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14 |
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| (19) |
25 |
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| (34) |
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55 |
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| (75) |
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80 |
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| (110) |
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120 |
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| (165) |
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180 |
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| (245) |
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230 |
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| (310) |
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440 |
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| (600) |
720(975)
1035(1400)
A |
Bolt |
Diameter |
Metric Series Torque Chart
Use only metric tools on metric hardware. Other tools may not fit properly. They may slip and cause injury.
DO NOT use these values if a different torque value or tightening procedure is listed for a specific application. Torque values listed are for general use only.
Fasteners should be replaced with the same grade.
Make sure fastener threads are clean and you properly start thread engagement. This will prevent them from failing when tightening.
Bolt |
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| MARKING ON HEAD |
| Metric | ||
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| Bolt Head | ||||
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| 8.8 |
| 10.9 | |||
Diameter | Wrench |
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| Identification | |||||
“A” | Size | ||||||
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5 mm | 8 mm | 6 | (4.5) | 9 | (6.5) |
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6 mm | 10 mm | 10 | (7.5) | 15 | (11) |
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8 mm | 13 mm | 25 | (18) | 35 | (26) | Metric | |
10 mm | 16 mm | 50 | (37) | 75 | (55) | ||
Grade 8.8 | |||||||
12 mm | 18 mm | 85 | (63) | 130 | (97) | ||
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14 mm | 21 mm | 110 | (80) | 150 | (110) |
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16 mm | 24 mm | 215 | (159) | 315 | (232) |
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20 mm | 30 mm | 435 | (321) | 620 | (457) | Metric | |
24 mm | 36 mm | 750 | (553) | 1070 | (789) | ||
30 mm | 46 mm | 1495 | (1103) | 2130 | (1571) | Grade 10.9 | |
5 |
