#8 Phillips Truss Head Self-Drilling Tek Screws | Zinc Sheet Metal

#8 Phillips Truss Head Self-Drilling Tek Screws – Zinc-Coated Sheet Metal Fasteners

Get the job done right with these #8 Phillips Truss Head Self-Drilling Tek Screws. Engineered for fast, reliable fastening into sheet metal and light steel framing, these self-tapping screws drill their own pilot hole — no pre-drilling required. Whether you're securing metal studs, lath to metal, HVAC ductwork, or general sheet metal applications, these screws deliver consistent, strong holding power every time.

Finished with a zinc oxide coating for added corrosion resistance, these fasteners are built to perform in demanding environments. The low-profile truss head distributes load evenly across the surface, minimizing the risk of pull-through on thinner gauge metals. The Phillips drive ensures easy, slip-resistant installation with standard power tools or a manual screwdriver.

Key Features

• Self-Drilling Tip: Eliminates the need for pre-drilling — saves time and effort on every installation
• Truss Head Design: Wide, low-profile head for superior load distribution and a clean, flush finish
• Phillips Drive (#2): Compatible with standard Phillips bits and power drivers for fast, efficient installation
• Zinc Oxide Coating: Provides corrosion resistance for both indoor and light outdoor applications
• Stainless Steel Construction: Durable, long-lasting, and easy to keep clean
• Size M3×16: Ideal for light-gauge sheet metal, metal studs, lath, ductwork, and more
• Bulk Pack of 100: Plenty of fasteners for large jobs or to keep on hand for ongoing projects

Specifications

• Drive Type: Phillips (#8)
• Head Style: Truss Head
• Thread Type: Self-Drilling (Tek)
• Size: M3×16
• Finish: Zinc Oxide
• Material: Stainless Steel
• Quantity: 100 pieces per pack

Common Applications

• Lath-to-metal stud fastening
• HVAC ductwork assembly
• Sheet metal fabrication and repair
• Light steel framing construction
• Metal roofing and cladding
• Electrical panel and enclosure assembly

For guidance on fastener standards and safe tool usage on construction sites, visit the OSHA Construction Safety resource.

Frequently Asked Questions

Q: What makes self-drilling Tek screws different from standard self-tapping screws?

A: Self-drilling Tek screws feature a drill-point tip that cuts through metal without a pre-drilled pilot hole, whereas standard self-tapping screws typically require a pre-drilled hole. This makes Tek screws faster and more efficient for sheet metal and light-gauge steel applications.

Q: What thickness of sheet metal are these #8 Phillips Truss Head Tek Screws suitable for?

A: At size M3×16, these self-drilling tek screws are best suited for light-gauge sheet metal and thin steel framing, typically up to around 14-gauge (approximately 1.9mm) sheet metal. They are ideal for metal studs, HVAC ductwork, lath-to-metal, and similar light construction applications.

Q: Do these zinc-coated sheet metal screws work with a standard power drill or screwdriver?

A: Yes — the Phillips (#8) drive is compatible with any standard #2 Phillips bit, whether you're using a power drill/driver or a manual screwdriver. For best results and fastest installation, a power drill/driver set to a medium torque is recommended.

Q: How does the zinc oxide coating benefit these screws?

A: The zinc oxide finish provides a protective barrier against moisture and oxidation, extending the service life of the fastener — especially in indoor environments or areas with occasional humidity exposure. It also gives the screws a clean, professional appearance.