Malco BT164 Bit-Tip #3 Point Self-Tapping & Self-Drilling Sheet Metal Screws- 5/16" Hex Washer Head | HVAC Fastners | Structural & Layered Metal (4000 Count)

The Malco BT164 Bit-Tip #3 Point Self-Tapping & Self-Drilling Sheet Metal Screws deliver a true one-step fastening solution for HVAC, structural, and layered metal work. By drilling its own hole and forming the thread in a single motion, these screws ensure optimal hole size, superior thread engagement, and a tighter, more reliable fit—eliminating alignment issues and extra steps on every install.

Key advantages you’ll notice on every job:

• One-pass fastening—the Bit-Tip both drills and taps in a single operation, reducing installation time and eliminating misalignment between pilot holes and fasteners.
• #3 point geometry—designed to handle metal thickness with precision, defining the screw’s ability to drill, tap, and fasten as you work.
• 5/16" hex washer head—provides a broad bearing surface for even load distribution and a clean, flush finish on sheet metal surfaces.
• Heat-treated steel, precision cold-forged—built for durability, uniformity of dimension, and consistent drill point contours, so every fastener performs like the last.
• Versatile substrate compatibility—not only ideal for sheet metal; also suitable for attaching plywood, soft wood, composition board, drywall, insulation, and laminates to metal framing or components.
• No extra equipment required—replace rivets, nuts and bolts, spot welds, or adhesives with a single tool-accessible fastener. Ideal for on-site efficiency.
• Broad project potential—a strong fit for HVAC installations, metal framing, duct supports, ceiling grids, and any layered-metal assembly.
• Includes a substantial count—4000-count pack for large jobs, reducing reorder frequency and keeping crews productive.
• Tool-ready—uses a standard screw gun rated at 2500 RPM with a drilling depth locator, so you can rely on familiar equipment without extra adapters or bits.

Why this matters for your projects

When speed and accuracy matter, the Malco BT164 shifts the balance in your favor. The Bit-Tip design ensures the hole size is optimized for strong thread engagement, resulting in a tighter, more durable fastening. This is especially valuable in HVAC and structural metal work where margins are tight and defects are costly. By removing the need for separate drilling, tapping, or welding steps, you reduce material handling time, labor costs, and the risk of misfits on critical assemblies.

Ideal applications

• HVAC ductwork and metal-framed enclosures
• Metal studs and framing, attaching drywall or insulation to metal structures
• Structural and layered metal assemblies where quick, reliable fastening is essential
• Retrofits and field installations where portable, no-wuss fastening is beneficial

With the Malco BT164 Bit-Tip, you’re investing in a reliable, field-ready fastening solution that simplifies installs, improves hold, and minimizes the tools required to get the job done right. A practical choice for professionals who value efficiency, consistency, and durable performance in metal-to-metal and metal-to-wood applications.