Standard Torque for Inch Fasteners
The following tables give general torques for bolts, nuts, and taperlock studs. The components have a rating of at least SAE Grade 5.
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| TORQUES FOR BOLTS AND FOR NUTS | ||
|---|---|---|
| THREAD SIZE INCH |
STANDARD BOLT AND NUT TORQUE | |
| N·m | lb ft | |
| 1/4 | 12 ± 3 | 9 ± 2 |
| 5/16 | 25 ± 6 | 18 ± 4.5 |
| 3/8 | 47 ± 9 | 35 ± 7 |
| 7/16 | 70 ± 15 | 50 ± 11 |
| 1/2 | 105 ± 20 | 75 ± 15 |
| 9/16 | 160 ± 30 | 120 ± 20 |
| 5/8 | 215 ± 40 | 160 ± 30 |
| 3/4 | 370 ± 50 | 275 ± 37 |
| 7/8 | 620 ± 80 | 460 ± 60 |
| 1 | 900 ± 100 | 660 ± 75 |
| 1 1/8 | 1300 ± 150 | 950 ± 100 |
| 1 1/4 | 1800 ± 200 | 1325 ± 150 |
| 1 3/8 | 2400 ± 300 | 1800 ± 225 |
| 1 1/2 | 3100 ± 350 | 2300 ± 250 |
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| TORQUES FOR TAPERLOCK STUDS | ||
|---|---|---|
| THREAD SIZE INCH |
STANDARD TAPERLOCK STUD TORQUE | |
| N·m | lb ft | |
| 1/4 | 8 ± 3 | 6 ± 2 |
| 5/16 | 17 ± 5 | 13 ± 4 |
| 3/8 | 35 ± 5 | 26 ± 4 |
| 7/16 | 45 ± 10 | 33 ± 7 |
| 1/2 | 65 ± 10 | 48 ± 7 |
| 5/8 | 110 ± 20 | 80 ± 15 |
| 3/4 | 170 ± 30 | 125 ± 22 |
| 7/8 | 260 ± 40 | 190 ± 30 |
| 1 | 400 ± 60 | 300 ± 45 |
| 1 1/8 | 525 ± 60 | 390 ± 45 |
| 1 1/4 | 750 ± 80 | 550 ± 60 |
| 1 3/8 | 950 ± 125 | 700 ± 92 |
| 1 1/2 | 1200 ± 150 | 885 ± 110 |
Caterpillar Information System:
CIPI UNDERCARRIAGE Arrangements: 166-7047, 177-3011, 177-3553, 177-4279, 200-2995, 200-4060, 204-0808, 212-6225, 213-8653, 215-7227, 218-2237, 231-5143, 3Q-6638, 3Q-6641, 6Z-7749, 6Z-7751, 6Z-7857, 6Z-7890, 6Z-7926, 6Z-7938, 6Z-7992, 9Q-5034, 9Q-5042 Standard Torque for Metric Fasteners
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CIPI UNDERCARRIAGE Arrangements: 1667049, 2372904, 3Q6481, 6Z7988, 6Z7989, 9Q5032, 9Q5040, 9Q5043, 9Q5046, 9Q5047, 9Q5066, 9Q5074, 9Q5097, 9Q5098, 9Q5116, 9Q5134, 9Q5136, 9Q5142, 9Q5147, 9Q5148, 9Q5149, 9Q5172 and 9Q5204 Final Drive Ring Gear Removal
CIPI UNDERCARRIAGE Arrangements: 166-7047, 177-3011, 177-3553, 177-4279, 200-2995, 200-4060, 204-0808, 212-6225, 213-8653, 215-7227, 218-2237, 231-5143, 3Q-6638, 3Q-6641, 6Z-7749, 6Z-7751, 6Z-7857, 6Z-7890, 6Z-7926, 6Z-7938, 6Z-7992, 9Q-5034, 9Q-5042 Towing the Machine
CIPI UNDERCARRIAGE Arrangements: 9Q5221, 9Q5234, 9Q5243, 9Q5245, 9Q5246, 9Q5247, 9Q5385, 9Q5433, 9Q5482, 9Q5622, 9Q5661, 9Q5719, 9Q5720, 9Q5721, 9Q5722, 9Q5830, 9Q5840, 9Q5857, 9Q5874, 9Q5883, 9Q5930 and 9Q5940 Fire Prevention and Explosion Prevention
CIPI UNDERCARRIAGE Arrangements: 9Q-5195, 9Q-5197, 9Q-5198, 9Q-5232, 9Q-5504, 9Q-5643, 9Q-5651, 9Q-5727, 9Q-5728, 9Q-5729, 9Q-5730, 9Q-5731, 9Q-5747, 9Q-5876, 180-4029, and 213-3892 Burn Prevention
CIPI UNDERCARRIAGE Arrangements: 9Q-5195, 9Q-5197, 9Q-5198, 9Q-5232, 9Q-5504, 9Q-5643, 9Q-5651, 9Q-5727, 9Q-5728, 9Q-5729, 9Q-5730, 9Q-5731, 9Q-5747, 9Q-5876, 180-4029, and 213-3892 Crushing Prevention and Cutting Prevention
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CIPI UNDERCARRIAGE Arrangements: 3Q-6662; 6Z-7861, 7885, 7947, 7957, 7999; 9Q-5044, 5065, 5082, 5090, 5093, 5115, 5118, 5126, 5135, 5141, 5168, 5175, 5206, 5255, 5259, 5268, 5412, 5436, 5464, 5514, 5617, 5618, 5716, 5741, 5742, 5758, 5826, 5831, 5846 Hydraulic Oil
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CIPI UNDERCARRIAGE Arrangements: 9Q5221, 9Q5234, 9Q5243, 9Q5245, 9Q5246, 9Q5247, 9Q5385, 9Q5433, 9Q5482, 9Q5622, 9Q5661, 9Q5719, 9Q5720, 9Q5721, 9Q5722, 9Q5830, 9Q5840, 9Q5857, 9Q5874, 9Q5883, 9Q5930 and 9Q5940 Lubricant Viscosities
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