IFI 113 Steel Self-Drilling Tapping Screws
IFI-113 covers steel self-drilling tapping screws in BSD and CSD types. Drawing shows major diameter, threaded shank and drill point.
Selected inch-series thread references
| Size | Major d | TPI | Type | Point styles |
|---|---|---|---|---|
| #4 | .1120 | 24 | BSD / CSD | Style 2 / 3 |
| #6 | .1380 | 20 | BSD / CSD | Style 2 / 3 |
| #8 | .1640 | 18 | BSD / CSD | Style 2 / 3 |
| #10 | .1900 | 16 | BSD / CSD | Style 2 / 3 |
| #12 | .2160 | 14 | BSD / CSD | Style 2 / 3 |
| #14 | .2500 | 14 | BSD / CSD | Style 2 / 3 |
Selected nominal diameters and common thread counts. Point, head, drill capacity and tolerances depend on type and edition.