Hex Bolts and Stud Bolt Dimensions for ASME B16.5 Class 900 Flange.
Bolt & Stud Bolt Diameter and Length for ASME B16.5 Class 900 Flanges
| Nominal Pipe Size, NPS |
Diameter of Bolts, in. |
Length of Bolts, L |
| Raised Face 0.25 in. |
Male and Female/ Tongue and Groove |
Ring Joint |
| 1/2 |
3/4 |
4.25 |
4.00 |
4.25 |
| 3/4 |
3/4 |
4.50 |
4.25 |
4.50 |
| 1 |
7/8 |
5.00 |
4.75 |
5.00 |
| 1 1/4 |
7/8 |
5.00 |
4.75 |
5.00 |
| 1 1/2 |
1 |
5.50 |
5.25 |
5.50 |
| 2 |
7/8 |
5.75 |
5.50 |
5.75 |
| 2 1/2 |
1 |
6.25 |
6.00 |
6.25 |
| 3 |
7/8 |
5.75 |
5.50 |
5.75 |
| 4 |
1 1/8 |
6.75 |
6.50 |
6.75 |
| 5 |
1 1/4 |
7.50 |
7.25 |
7.50 |
| 6 |
1 1/8 |
7.50 |
7.25 |
7.75 |
| 8 |
1 3/8 |
8.75 |
8.50 |
8.75 |
| 10 |
1 3/8 |
9.25 |
9.00 |
9.25 |
| 12 |
1 3/8 |
10.00 |
9.75 |
10.00 |
| 14 |
1 1/2 |
10.75 |
10.50 |
11.00 |
| 16 |
1 5/8 |
11.25 |
11.00 |
11.50 |
| 18 |
1 7/8 |
12.75 |
12.50 |
13.25 |
| 20 |
2 |
13.75 |
13.50 |
14.25 |
| 24 |
2 1/2 |
17.25 |
17.00 |
18.00 |
NOTES :
- Dimension are in inches.
- Length of stud bolts does not include the height of the points.
- Bolt lengths not shown in table may be determined in accordance with Annex D.