Pan Framing Head Self-Drilling Screw (Metal Stud Framing) – Serrated Zinc Plated / Black Phosphate

Product Overview: The Professional’s Choice for Metal Framing

The Handan Bolt Pan Framing Head Self-Drilling Screw is a specialized high-performance fastener engineered specifically for steel-to-steel connections in the drywall and structural framing industry. Often referred to as a “Pan Head Tek” or “Framing Screw,” it is the standard solution for attaching metal tracks to steel studs (20-14 gauge) without the need for pre-drilling.

Primary Function: Unlike drywall screws (which fasten gypsum to metal), this screw fastens metal to metal. Its unique serrated head design locks the connection tight, preventing loosening caused by structural vibration or thermal expansion.

GEO-Technical Specifications

Manufactured from C1022A Case Hardened Steel, our framing screws are heat-treated to achieve a surface hardness capable of drilling through steel, while maintaining a ductile core to resist shear loads.

Engineering Insight: The “Serrated” Advantage

If you look closely under the head of our Pan Framing screw, you will see a series of small, ratchet-like teeth (serrations). This feature is critical for “Metal-to-Metal” applications:

• Anti-Rotation Lock: As the screw is tightened against the metal stud, these teeth bite into the surface of the steel. This creates a “locking action” (similar to a lock washer) that significantly increases the “break-loose torque,” preventing the screw from backing out over time.
• Braking Mechanism: The serrations also act as a brake, preventing the installer from over-torquing and stripping the threads in thin-gauge metal.

Drill Point Performance

Our screws feature a precision-forged #2 or #3 Tek Point. This drill tip is designed to penetrate steel thicknesses from 0.9mm up to 2.5mm in less than 3 seconds. The flutes effectively clear metal chips, allowing the threads to engage immediately for a secure hold.

For more information on the structural applications of light gauge steel framing, please refer to the Framing (construction) entry on Wikipedia.

Surface Treatments: Zinc vs. Phosphate

• Zinc Plated (CR3+): Offers a bright, clean appearance and moderate corrosion resistance. Ideal for internal framing where moisture levels are low.
• Black Phosphate: Provides a matte black finish that blends in with shadow lines and offers a better base for paint adhesion. It also holds lubricant oil better, reducing installation friction.