Our Pan Framing Head Self Drilling Screws are engineered specifically for light-gauge steel framing applications, offering a one-step drilling, tapping, and fastening solution without pre-drilling. The distinctive pan framing head features a slightly raised profile with short vertical sidewalls, providing higher torque resistance compared to standard pan heads. Locking serrations bite into the workpiece surface, delivering excellent locking performance under dynamic loads.
Whether you need a reliable pan framing screw for stud-to-track connections in cold-formed steel construction or for metal-to-metal fastening in industrial assemblies, our products deliver consistent quality. Available in thread sizes ST3.5 to ST6.3, with multiple drive options (Phillips, Pozidriv, Torx) and surface finishes (zinc, yellow zinc, Geomet).
| Thread Size | Diameter (mm/in) | Length Range (mm/in) | Head Height (mm) | Drill Point Type | Max. Single Sheet Steel Thickness (mm) | Recommended Grip Range (mm) |
|---|---|---|---|---|---|---|
| ST3.5 | 3.5 mm (≈#6) | 9.5 – 50 (3/8" – 2") | 2.2 – 2.5 | Drill Point #1 | 1.5 mm (0.059") | 0.5 – 2.0 |
| ST3.9 | 3.9 mm (≈#7) | 11 – 50 (7/16" – 2") | 2.4 – 2.7 | Drill Point #1 | 1.8 mm (0.071") | 0.5 – 2.5 |
| ST4.2 | 4.2 mm (≈#8) | 13 – 80 (1/2" – 3") | 2.6 – 3.0 | Drill Point #2 | 2.5 mm (0.098") | 0.7 – 3.0 |
| ST4.8 | 4.8 mm (≈#10) | 16 – 100 (5/8" – 4") | 3.0 – 3.5 | Drill Point #2 | 3.0 mm (0.118") | 1.0 – 4.0 |
| ST5.5 | 5.5 mm (≈#12) | 19 – 120 (3/4" – 4.7") | 3.3 – 3.8 | Drill Point #3 | 3.5 mm (0.138") | 1.5 – 5.0 |
| ST6.3 | 6.3 mm (≈#14) | 25 – 150 (1" – 6") | 3.8 – 4.2 | Drill Point #3 | 4.5 mm (0.177") | 2.0 – 5.0 |
| Feature | Standard Pan Head | Pan Framing Head Self Drilling Screws |
|---|---|---|
| Head height | Low | Higher (increased wall thickness for greater torque resistance) |
| Side profile | Smooth curved transition | Short vertical sidewall – stepped appearance |
| Serrations under head | None (or not standard) | Standard or optional serrations for anti-loosening |
| Driving feel | Smooth | Increased resistance when seating, as serrations embed into the workpiece |
| Vibration resistance | Moderate | Excellent – ideal for dynamic load applications |
Serrations are located on the underside of the Pan Framing Head, featuring a radial fine-tooth pattern. When a Pan Framing Head Self Drilling Screw is fully driven, these serrations embed into the surface of the fastened metal sheet, generating additional friction. This provides the following benefits:
Hefeng Group focuses on manufacturing and supplying screws for real construction needs.
Over the past 10 years, we’ve worked with customers across North America, South America, and Southeast Asia, learning that consistency matters most in this business...[ Read More >>]
