IFI 136 Studs and Bent Bolts
IFI-136 covered studs, stud bolts and bent bolts, including double-end and continuous-thread forms. Drawing shows a double-end stud and its thread references.
Scope and dimensional reference
| Feature | Reference | Symbol | Current control |
|---|---|---|---|
| Thread diameter | Through 1 1/2 in | d | ASME B18.31.5 |
| End form | Double-end / continuous / bent | — | Application drawing |
| Engagement | Depends on series | b | ASME B18.31.5 |
| Overall length | Product-specific | L | Purchase specification |
IFI-136 was withdrawn in favor of ASME B18.31.5. Historical size scope extends through 1 1/2 in thread diameter; use the replacement for production.