BS 3032:1958
Higher Tensile Steel
MB Proof load=2*Safe working load(w)
| d | D | W | S | e | ||
| W=Safe | d= | D= | W= | S= | e= | Weight |
| Working | ||||||
| each/kg | ||||||
| Lod |  0.49√W | 0.56W | 0.95W | 0.81W | 1.12W | |
| tons cwt | in. | in. | in. | in. | in. | |
| 5 | 1/4 | 3/8 | 1/2 | 1 | 3/4 | 0.1 |
| 10 | 3/8 | 1/2 | 3/4 | 11/2 | 1 | 0.2 |
| 15 | 1/2 | 5/8 | 11/8 | 21/8 | 11/4 | 0.4 |
| 1 10 | 5/8 | 3/4 | 11/4 | 21/2 | 11/2 | 0.7 |
| 2 0 | 3/4 | 7/8 | 11/2 | 27/8 | 13/4 | 1.0 |
| 3 0 | 7/8 | 1/1 | 13/4 | 31/4 | 2 | 1.6 |
| 3 15 | 1 | 1/8 | 2 | 33/4 | 21/4 | 2.3 |
| 5 0 | 11/3 | 11/4 | 21/8 | 41/8 | 21/2 | 3.2 |
| 6 0 | 11/4 | 13/8 | 23/8 | 21/2 | 23/4 | 4.3 |
| 7 0 | 13/8 | 11/2 | 25/8 | 5 | 3 | 5.4 |
| 9 10 | 11/2 | 13/4 | 23/4 | 53/8 | 31/2 | 6.8 |
| 11 5 | 15/8 | 17/8 | 3 | 53/4 | 33/4 | 8.7 |
| 13 0 | 13/4 | 2 | 31/4 | 61/8 | 4 | 11.0 |
| 14 5 | 17/8 | 21/8 | 35/8 | 7 | 41/4 | 14.3 |
| 16 5 | 2 | 73/8 | 41/2 | 20.0 |
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