Light Duty 17-4 PH® Flange Bolting
Light duty is an economical version of stainless steel flange bolting, suitable for applications in which protection from corrosion is required.
The load values listed in the table below are according to the calculated theoretical load curve based on the dimensions and material for each part number.
| Part Number | Bolt Size | Flat Load lb | Torque * ft-lb |
|---|---|---|---|
| FB1-4 | 1/2" | 1906 | 13 |
| FB2-4 | 5/8" | 2943 | 26 |
| FB3-4 | 3/4" | 4128 | 41 |
| FB4-4 | 7/8" | 5290 | 61 |
| FB5-4 | 1" | 7200 | 97 |
| FB6-4 | 1-1/8" | 8632 | 129 |
| FB7-4 | 1-1/4" | 10886 | 181 |
| FB8-4 | 1-3/8" | 12694 | 233 |
| FB9-4 | 1-1/2" | 14644 | 262 |
| FB10-4 | 1-5/8" | 17645 | 363 |
| FB11-4 | 1-3/4" | 20387 | 490 |
| FB12-4 | 1-7/8" | 23767 | 657 |
| FB13-4 | 2" | 27371 | 725 |
| FB14-4 | 2-1/4" | 35185 | 1048 |
| FB15-4 | 2-1/2" | 43682 | 1443 |
| FB16-4 | 2-3/4" | 53669 | 1950 |
| FB17-4 | 3" | 64349 | 2544 |
* Torque values for sizes 1-1/8″ and larger are based on the 8-pitch thread series for flanged piping.