#2500 Flange Bolt Chart
| Nominal Pipe Size (inches) | (inches) | Number of Studs | Diameter of Studs (inches) | Length of Stud - RF (inches) | Length of Stud - RTJ (inches) |
|---|---|---|---|---|---|
| 1/2 | 1-1/4 | 4 | 3/4 | 4-3/4 | 4-3/4 |
| 3/4 | 1-1/4 | 4 | 3/4 | 5 | 5 |
| 1 | 1-7/16 | 4 | 7/8 | 5-1/2 | 5-1/2 |
| 1-1/4 | 1-5/8 | 4 | 1 | 6 | 6 |
| 1-1/2 | 1-13/16 | 4 | 1-1/8 | 6-3/4 | 6-3/4 |
| 2 | 1-5/8 | 8 | 1 | 7 | 7 |
| 2-1/2 | 1-13/16 | 8 | 1-1/8 | 7-3/4 | 8 |
| 3 | 2 | 8 | 1-1/4 | 8-3/4 | 9 |
| 4 | 2-3/8 | 8 | 1-1/2 | 10 | 10-1/4 |
| 5 | 2-3/4 | 8 | 1-3/4 | 11-3/4 | 12-1/4 |
| 6 | 3-1/8 | 8 | 2 | 13-1/2 | 14 |
| 8 | 3-1/8 | 12 | 2 | 15 | 15-1/2 |
| 10 | 3-7/8 | 12 | 2-1/2 | 19-1/4 | 20 |
| 12 | 4-1/4 | 12 | 2-3/4 | 21-1/4 | 22 |
