Countersunk Self-Drilling Screw with Wings
Head Type：Countersunk Head with Wings
Thread Type：Coarse Thread
Material Options：Carbon steel
Finish / Coating：Class 3 /Zinc
Applications：
- Fixing thin steel sheets to timber purlins or timber framing
- Roofing and wall cladding installations with timber substructures
- Steel-to-timber connections requiring a flush finish
- Applications where clean countersinking and reduced timber splitting are required
Designed for steel-to-timber fastening, this countersunk wing screw allows smooth drilling through steel, controlled entry into timber, and a neat flush finish across a wide range of applications.
| Size | Length (inch) | Length (mm) | Dia (mm) | Drill Tail |
|---|---|---|---|---|
| WING SDM 8–18 × 32 | 1-1/4″ | 32 | 4.2 | #2 |
| WING SDM 8–18 × 35 | 1-3/8″ | 35 | 4.2 | #2 |
| WING SDM 10–16 × 45 | 1-3/4″ | 45 | 4.8 | #3 |
| WING SDM 10–16 × 50 | 2″ | 50 | 4.8 | #3 |
| WING SDM 10–16 × 55 | 2-1/8″ | 55 | 4.8 | #3 |
| WING SDM 10–16 × 65 | 2-1/2″ | 65 | 4.8 | #3 |
| WING SDM 10–16 × 75 | 3″ | 75 | 4.8 | #3 |