Standard Thread Length for US Flange Bolts
|
Flange Bolt Diameter (in.) |
Standard Thread Length - IFI-111 (in.) |
|
|---|---|---|
| Flange Bolts 6" and shorter | Flange Bolts longer than 6" | |
| 1/4" | 3/4" | 1" |
| 5/16" | 7/8" | 1-1/8" |
| 3/8" | 1" | 1-1/4" |
| 7/16" | 1-1/8" | 1-3/8" |
| 1/2" | 1-1/4" | 1-1/2" |
| 9/16" | 1-3/8" | 1-5/8" |
| 5/8" | 1-1/2" | 1-3/4" |
| 3/4" | 1-3/4" | 2" |