Description
Product Overview
The E-Coat Black Serrated Flat Head Framing Screw is designed for fixing
metal wall frames and trusses where pre-punched holes are provided.
Under-head serrations help resist loosening, while a special thread form reduces
installation friction and provides resistance to vibrational loosening. The thread
runs to the point tip for easy start and alignment.
Key Features
- Applications: Pre-punched holes, steel wall frames, steel roof trusses.
- Under-head serrations for resistance to loosening.
- Thread form engineered to reduce friction and resist vibration.
- Extended thread to tip for easy starting and alignment.
Materials & Finish
- Material: C1022 hardened steel.
- Finish: E-Coat Black (ECOK).
- Drive: T25 Torx.
Size & Dimensions
| Part | Gauge | TPI | Length L (mm) | Thread Length TL (mm) | Drill Point Length DP (mm) | Head Ø D (mm) | Torx Drive |
|---|
| T9PFKET6225016 | 6.2 | 25 | 16 | 14.3 | 5.7 | 9.6 | T25 |
Mechanical Performance
| Property | Value | Notes |
|---|
| Torsional strength | 10.9 Nm | Minimum |
| Head & shank bend angle | 12° | Minimum |
| Characteristic shear strength | 6040 N | Laboratory value |
| Characteristic tensile strength | 10070 N | Laboratory value |
Pullout Strength (Laboratory values using DRILLX product)
| Plate Material | Metal Plate Thickness (mm) | Mean Ultimate Strength (N) | Characteristic Strength (N) | Working Load (N) |
|---|
| G2 Purlin | 0.55 | 1610 | 1470 | 590 |
| G2 Purlin | 0.8 | 1810 | 1680 | 670 |
| G2 Purlin | 1.1 | 2490 | 1890 | 750 |
| G550 Purlin | 1.5 | 4630 | 2630 | 1050 |
All values are obtained under laboratory conditions using DRILLX product. Safety factors should be considered for design purposes.
Download the official Hobson data sheet (PDF)
