Hanger Rods and Load Capacity
Load ratings for threaded hanger rods
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Load capacity of threaded hanger rods are indicated in the table below:
| Nominal Rod Diameter (inches) |
Root Area of Thread (in2) |
Maximum Load | |
| (lbs) | (kg) | ||
| 3/8 | 0.07 | 600 | 270 |
| 1/2 | 0.13 | 1100 | 500 |
| 5/8 | 0.20 | 1800 | 820 |
| 3/4 | 0.30 | 2700 | 1220 |
| 7/8 | 0.42 | 3800 | 1720 |
| 1 | 0.55 | 4900 | 2220 |
| 1 1/8 | 0.69 | 6200 | 2810 |
| 1 1/4 | 0.89 | 8000 | 3630 |
| 1 1/2 | 1.29 | 11600 | 5260 |
| 1 3/4 | 1.74 | 14700 | 6670 |
| 2 | 2.30 | 20700 | 9390 |
| 2 1/4 | 3.02 | 27200 | 12340 |
| 2 1/2 | 3.72 | 33500 | 15200 |
| 3 | 5.62 | 50600 | 22960 |
| 3 1/4 | 6.72 | 60500 | 27440 |
| 3 1/2 | 7.92 | 71300 | 32340 |
| 4 | 10.6 | 95400 | 43270 |
| 4 1/2 | 13.7 | 123000 | 55780 |
| 5 | 17.2 | 154000 | 6990 |
- allowable tensile stress 9 kpsi
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