ASME B16.5 Stud Bolts Class 400
Bolt & Stud Bolt Diameter and Length for ANSI / ASME B16.5 Class 400 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 |
1/2 |
3.00 |
2.75 |
3.00 |
| 3/4 |
5/8 |
3.50 |
3.25 |
3.50 |
| 1 |
5/8 |
3.50 |
3.25 |
3.50 |
| 1 1/4 |
5/8 |
3.75 |
3.50 |
3.75 |
| 1 1/2 |
3/4 |
4.25 |
4.00 |
4.25 |
| 2 |
5/8 |
4.25 |
4.00 |
4.25 |
| 2 1/2 |
3/4 |
4.75 |
4.50 |
4.75 |
| 3 |
3/4 |
5.00 |
4.75 |
5.00 |
| 3 1/2 |
7/8 |
5.50 |
5.25 |
5.50 |
| 4 |
7/8 |
5.50 |
5.25 |
5.50 |
| 5 |
7/8 |
5.75 |
5.25 |
5.75 |
| 6 |
7/8 |
6.00 |
5.75 |
6.00 |
| 8 |
1 |
6.75 |
6.50 |
6.75 |
| 10 |
1 1/8 |
7.50 |
7.25 |
7.50 |
| 12 |
1 1/4 |
8.00 |
7.75 |
8.00 |
| 14 |
1 1/4 |
8.25 |
8.00 |
8.25 |
| 16 |
1 3/8 |
8.75 |
8.50 |
8.75 |
| 18 |
1 3/8 |
9.00 |
8.75 |
9.00 |
| 20 |
1 1/2 |
9.50 |
9.25 |
9.75 |
| 24 |
1 3/4 |
10.50 |
10.25 |
11.00 |
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.
