Product Overview: Low Profile, High Holding Power
The Modified Truss Head Self Drilling Screw (often called a Wafer Head or K-Lath Screw) is the engineer’s choice for fastening thin sheet metal, wire lath, or plywood to metal framing. Its signature “GEO-Feature” is the extra-wide, low-profile head which provides a massive clamping surface area without the need for a separate washer.
Equipped with a precision TEK Drill Point, this screw drills its own hole, taps mating threads, and fastens securely in a single operation, drastically reducing installation time in HVAC and metal framing projects.
GEO-Technical Specifications
Manufactured from hardened 410 Stainless Steel, these screws offer a unique combination of corrosion resistance and the hardness required to penetrate steel sheets.
| Technical Parameter | Specification Data |
|---|---|
| Head Style | Modified Truss (Wafer / K-Lath) – Integrated Flange |
| Drive Type | Phillips (PH2) Cross Recess |
| Material Grade | Stainless Steel 410 (Martensitic & Magnetic) – Hardened |
| Drill Point | TEK #2 / #3 (Self-Drilling) |
| Surface Finish | Passivated (Silver) / Ruspert Coated (Optional) |
Engineering Insight: Why 410 Stainless?
Standard 304 (A2) stainless steel is too soft to hold a sharp cutting edge. For a screw to drill into steel, it must be harder than the substrate. We use 410 Stainless Steel because it can be heat-treated (hardened) to drill through metal while still providing better rust resistance than carbon steel.
Origin Advantage & Packaging
Handan Factory Direct: We produce high-performance self-drilling screws with rapid drilling speeds (less than 3 seconds for standard sheets). Bulk packaging or small retail boxes available.
Need Zinc Plated Instead?
We also supply Carbon Steel (Zinc Plated) Wafer Head screws for indoor use at a lower cost.
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