Mungo 5220159

Professional Summary

• Manufacturer: Mungo (Switzerland)

• Article / Part Number: 5220159

• Product Line / Type: Metal Frame Wafer Head Screw / Sheet Metal to Steel Fastener

• Material & Coating: High-grade hardened Carbon Steel, Zinc Plated (provides robust protection against oxidation and construction-site moisture).

Dimensions & Installation Specs

• Screw Diameter ($d$): 3.9 mm

• Total Length ($L$): 22 mm (optimized short length for metal-to-metal framing joints)

• Drive Type: PH2 (Phillips No. 2) (standard crosshead for precision stability and high-speed driver bits).

• Tip Type: Self-Drilling Drill Point (Сверло) — cuts through metal layers effortlessly.

• Head Type: Wafer Head (Flanged / Пресс-шайба) — low-profile ultra-flat head with a broad integrated washer.

Key Features & Engineering

• Flanged Wafer Geometry: The ultra-flat head ensures that subsequent drywall sheets can sit perfectly flat over the metal frame junction without creating bumps or bulges. The wide surface area provides massive clamping force on thin sheet metals.

• Rapid Self-Drilling Point: The integrated drill tip is calibrated to instantly bore, tap, and lock through overlapping steel frames or brackets (up to 2.0 mm thickness) without walking.

• High Vibration Resistance: Tight thread engagement with the broad head flange dampens structural vibrations, preventing loosening over time.

Application Range:

Stitching metal-to-metal framework connections, installing direct acoustic ceiling hangers (brackets/peshkas) to ceiling tracks, mounting thin sheet metals, and aligning steel partition framework components.