This page was last updated on $Date: 2003/07/22 02:36:23 $
torque and clamp loads for grade 5 and 8 fasteners.
| size | grade 5 | grade 8 | ||||
|---|---|---|---|---|---|---|
| clamp (lbs) | Torque (ft-lbs) | clamp (lbs) | Torque (ft-lbs) | |||
| dry | oiled | dry | oiled | |||
| 1/4-20 | 2000 | 8 | 6 | 2850 | 12 | 9 |
| 1/4-28 | 2300 | 10 | 7.5 | 3250 | 14 | 10 |
| 5/16-18 | 2250 | 17 | 13 | 4700 | 25 | 18 |
| 5/16-24 | 3700 | 19 | 14 | 5200 | 25 | 20 |
| 3/8-16 | 4950 | 30 | 23 | 7000 | 45 | 35 |
| 3/8-24 | 5600 | 35 | 25 | 7900 | 50 | 35 |
| 7/16-14 | 6800 | 50 | 35 | 9550 | 70 | 55 |
| 7/16-20 | 7600 | 55 | 40 | 10650 | 80 | 60 |
| 1/2-13 | 9000 | 75 | 55 | 12750 | 110 | 80 |
| 1/2-20 | 10250 | 90 | 65 | 14375 | 120 | 90 |
| 9/16-12 | 11600 | 110 | 80 | 16375 | 150 | 110 |
| 9/16-18 | 13000 | 120 | 90 | 18250 | 170 | 130 |
| 5/8-11 | 14400 | 150 | 110 | 20350 | 220 | 170 |
| 5/8-18 | 16375 | 180 | 130 | 23000 | 240 | 180 |
| 3/4-10 | 21300 | 260 | 200 | 30100 | 380 | 280 |
| 3/4-16 | 23800 | 300 | 220 | 33500 | 420 | 320 |
The editor of this page is Bob Haskell.
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