Flat Head Phillips Self-Drilling Screw
Head Type：Flat Head
Thread Type：Coarse Thread, Fully Threaded
Material Options：Carbon steel /Stainless steel（304/316）
Finish / Coating：Class3/Zinc
Applications：
- Metal-to-metal fastening in light-gauge steel
- Fixing steel sheets, panels, and fittings requiring a flush finish
- Interior metal assemblies and concealed connections
- General construction and installation applications
Designed for clean, flush installation, this flat head self-drilling screw provides neat appearance, fast drilling, and reliable holding performance.
| Size | Length (inch) | Length (mm) | Dia (mm) | Drill Tail |
|---|---|---|---|---|
| SDM 8–18 × 13 | 1/2″ | 13 | 4.2 | #2 |
| SDM 8–18 × 16 | 5/8″ | 16 | 4.2 | #2 |
| SDM 8–18 × 19 | 3/4″ | 19 | 4.2 | #2 |
| SDM 8–18 × 25 | 1″ | 25 | 4.2 | #2 |
| SDM 10–16 × 16 | 5/8″ | 16 | 4.8 | #3 |
| SDM 10–16 × 19 | 3/4″ | 19 | 4.8 | #3 |
| SDM 10–16 × 25 | 1″ | 25 | 4.8 | #3 |
| SDM 10–16 × 32 | 1-1/4″ | 32 | 4.8 | #3 |