IFI 153 Stainless Steel Wire and Rods for Mechanical Fasteners
IFI-153 covers stainless-steel wire and rods for manufacturing mechanical fasteners. Drawing represents round material stock; product dimensions come from the finished-fastener standard.
Material-form drawing references
| Feature | Symbol | Meaning | Controlled by |
|---|---|---|---|
| Round wire / rod | d | Stock diameter | Material schedule |
| Stock length | L | Cut length | Manufacturing process |
| Material condition | Grade / condition | Chemistry and mechanical condition | IFI-153 / material certificate |
| Finished fastener | Product-specific | Formed or machined part | Finished-fastener standard |
Material standard, not a finished bolt or screw geometry schedule. Verify material grade, condition, stock diameter and tolerance in the controlling material schedule.