| Surface Treatment | ZP |
Product Introduction
Standard Name: Hex Washer Head (Pan Framing) Self-Drilling Screw, Zinc Plated, Phillips Drive.
Common Names: Hex Washer Head Self-Drilling Screw, Zinc-Plated Pan Head Framing Screw.
Product Definition: A heavy-duty wood framing fastener integrating drilling, tapping, and securing functions. Its head combines a hexagonal shape (enabling high torque application with socket wrenches), a pan head profile, and an integrated flange washer (“Framing Head” denotes the large-diameter washer). This design provides substantial bearing surface during installation, preventing wood compression. Primarily used for rapidly and securely fastening metal connectors, angle brackets, hangers, and similar components to wooden beams and studs, it serves as a critical fastener in modern wood framing construction.
Hex Head Self-Drilling Screw Pan Framing Head ZP Phillips Key Features
Hexagonal Pan Framing Head Design: The head is hexagonal with an integrated washer/framing head,
providing a wide pressure surface and a waterproof seal. The frame head is suitable for securing steel
frames and preventing material deformation.
Self-drilling Tail End: The tip has a tek point, allowing drilling, tapping, and securing without pre-drilling
in one step.
Zinc Plated (ZP): Provides basic rust protection and a bright silver finish, enhancing corrosion resistance,
suitable for indoor or slightly humid environments.
Cross-groove Auxiliary Drive: Some models incorporate Phillips cross-grooves for easy use with mixed
tools.
Various Sizes: Commonly #10-#14 diameter, length 1"-3" (25-75mm), carbon steel construction,
high strength.
Working Principle
Drilling Stage: The drill tip penetrates the material (such as a steel frame), quickly drilling a pilot hole.
Tapping and Fixing: The thread follows the cut to form an internal thread, generating axial clamping force.
Head Sealing: The hexagonal frame head with washers evenly distributes pressure, providing
waterproofing and preventing loosening; the zinc plating reduces friction and improves efficiency.
Installation Control: Precise torque is achieved using a wrench or screwdriver to avoid overtightening
and damaging materials; the principle involves drilling, cutting, and friction interlocking.
Product Applications
Steel Frame Construction: Fast and efficient fixing of metal keels, light steel structures, or drywall frames.
Sheet Metal Fabrication: Connecting metal sheets, roofing, or wall panels, providing a leak-proof seal.
Building Construction: Interior steel structure or curtain wall installation; the frame head is suitable for
heavy-duty fixing.
HVAC & Ventilation: Installing ducts or equipment brackets.
DIY & Repair: Home or industrial metal connections; the zinc plating is suitable for non-extreme
environments.
