Mungo 5220163

Professional Summary

• Manufacturer: Mungo (Switzerland)

• Article / Part Number: 5220163

• Product Line / Type: Metal Frame Wafer Head Screw / Sheet Metal to Steel Fastener (Maximum Length Variant)

• Material & Coating: High-grade hardened Carbon Steel, premium Zinc Plated (engineered for high protection against oxidation, atmospheric corrosion, and site moisture).

Dimensions & Installation Specs

• Screw Diameter ($d$): 3.9 mm

• Total Length ($L$): 55 mm (extended deep-reach variant for thick framing assemblies)

• Drive Type: PH2 (Phillips No. 2) (standard crosshead for precision stability and high torque transmission).

• Tip Type: Self-Drilling Drill Point (Сверло) — cuts through steel profiles cleanly without pre-drilling.

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

Key Features & Engineering

• Deep Reach Clamping Power: The 55 mm extended length allows the screw to span through thicker components, multiple steel tracks, or spacers while the drilling tip fully engages and locks into the structural base steel.

• Ultra-Flat Wafer Head: The broad, low-profile flange maximizes surface contact area to clamp sheets tightly under high tension, remaining flush enough to prevent overlying layers from bulging.

• Rapid Self-Drilling Point: The integrated drill tip is calibrated to instantly bite, bore, and tap through steel framework connections (up to 2.0 mm total thickness) without walking.

• Vibration Immunity: Tight fine-thread engagement combined with the broad head flange guarantees a permanent mechanical lock that withstands acoustic and structural movements.

Application Range:

Stitching deep or multi-layered metal-to-metal tracking and structural studs, mounting heavy suspension systems over spacers, fastening thick-gauge sheet metals, and securing structural metal component linings in facade or interior framing.