Malco BT141 Bit-Tip #2 Point Self-Drilling and Self-Tapping Screws — 10-16 thread, 1/2" length, equipped with a 5/16" hex washer head for secure, corrosion-resistant installation. Engineered for HVAC fasteners and structural/ layered metal, these screws are built to tackle demanding metalwork with one straightforward step.

What sets Bit-Tip apart

• Drills its own hole for an optimal hole size, delivering superior thread engagement and a tighter, more reliable joint with every fasten.
• One-operation fastening eliminates alignment challenges and speeds up installation—great for tight spaces or repetitive tasks.
• Self-drilling and self-tapping capabilities simplify fastening to metal while also accommodating plywood, soft wood, composition board, drywall, insulation, and laminates fastened to metal framing or components.
• Rugged construction forged from high-quality, heat-treated steel and precision cold-forged for uniform dimensions and drill-point contours, ensuring consistent performance batch after batch.
• Reduces tooling needs by replacing rivets, nuts and bolts, spot welds, or adhesives in many applications; a practical alternative to costly secondary fastening equipment.
• Low-maintenance setup requires only a standard screw gun up to 2500 RPM with a drilling depth locator, making it approachable for both pros and experienced DIYers.

Ideal uses and practical applications

• HVAC installations, ductwork attachment, and metal framing where quick, dependable fastening matters.
• Structural and layered metal assemblies where a secure hold is needed without through-bolts or rivets.
• Fastening to metal studs, joists, or panels while also securing adjacent materials like plywood, drywall, insulation, and laminates.
• Situations that benefit from eliminating separate drilling, tapping, or welding steps—reducing time and equipment costs on the job.

How to use

• Choose the BT141 with its #2 point for the appropriate metal thickness you’re working with; the point length is tuned to determine the maximum thickness you can drill, tap, and fasten in one pass.
• Attach to a standard screw gun rated up to 2500 RPM and use the drilling depth locator to control engagement depth.
• Ensure the workpiece is properly supported to avoid run-out, and avoid overtightening to preserve fastener integrity and material texture.

Why this matters for your project

Compared to traditional fastening methods—rivets, nuts and bolts, spot welds, or adhesives—Bit-Tip provides a streamlined, versatile solution that can reduce equipment needs, shorten assembly times, and improve joint integrity in metal-centric builds. Its specialized design is tailored for HVAC and structural metal work, delivering reliable performance across common substrates encountered in commercial and residential projects.

If you’re tackling metal framing, duct installation, or layered metal assemblies where a clean, strong, one-step fastening is prized, the Malco BT141 Bit-Tip self-drilling and self-tapping screws are engineered to deliver consistent results, helping you finish faster with fewer tools and fewer steps.