Mungo 5220143

Professional Summary

• Manufacturer: Mungo (Switzerland)

• Article / Part Number: 5220143

• Product Line / Type: Metal Frame Screw / Drywall-to-Steel Fastener (Maximum Length Variant)

• Material & Coating: High-grade Carbon Steel, premium Black Phosphated (formulated for high resistance against wet plaster compounds and moisture corrosion).

Dimensions & Installation Specs

• Screw Diameter ($d$): 3.5 mm (slim, high-precision profile)

• Total Length ($L$): 55 mm (maximum length for deep multi-layer structural cladding)

• Drive Type: PH2 (Phillips No. 2) (standard crosshead profile for automated drywall screw guns and high-speed drivers).

• Thread Type: Fine Thread (engineered specifically for dense mechanical grip inside steel profiles).

• Head Type: Bugle Head (countersinks flush into gypsum core without tearing the outer lining).

Key Features & Engineering

• Needle Point Sharpness: The hardened pierce point ensures instantaneous centering and clean puncture through light-gauge steel tracking without slipping or pre-drilling.

• Corrosion Immunity: The black phosphate chemical treatment guarantees that rust will not bleed through finished painted or wallpapered surfaces after jointing.

• Extended Reach Friction: The 55 mm length combined with a fine thread configuration ensures a tight, vibration-proof mechanical lock deep inside the interior steel framework, even under multi-layer structural tension.

Application Range:

Fixing triple or quadruple-layer standard drywall sheets, thick specialized fire-protection boards, multi-layer high-density acoustic linings, or heavy structural panels to standard interior light-gauge metal stud partitions and ceiling track frameworks.