Timco TwinCut EXT Cement Board Screws 4.2 x 25 mm, 200 pcs
Timco TwinCut EXT cement board screws, 4.2 mm × 25 mm, 200‑pcs, with exterior‑grade coating, fire‑rated A1, for timber, sheet metal and bathroom use.
Overview
The Timco TwinCut EXT Cement Board Screws are engineered for fixing cement board to timber and thin sheet metal (maximum thickness 0.6 mm). A self‑countersinking wafer head delivers a flush, secure finish that meets the demands of professional installations.
Key Features
- Twin‑cut point with hi‑low thread for rapid pick‑up and reduced torque during installation
- Exterior‑grade coating provides superior corrosion resistance (tested to 1,500 hours in salt spray)
- Ribs under the head improve countersinking accuracy
- Fire Classification A1 for safe use in a variety of environments
- Organic plating offers excellent durability in damp or corrosive conditions
Technical Specifications
- Thread Diameter: 4.2 mm
- Length: 25 mm
- Thread Length: 21 mm
- Head Type: Countersunk wafer
- Recess Type: Phillips (PH2 bit required)
- Point Type: Twin‑cut
- Finish: Exterior Plus
- Material: Carbon steel
- Max Drilling Thickness: 0.6 mm
Applications
The robust exterior‑grade coating makes these screws ideal for bathroom installations, exterior applications and any setting prone to moisture. They are suitable wherever cement board must be attached securely to timber or thin sheet metal, providing reliability in demanding conditions.
- Fixing cement board to timber
- Fixing cement board to thin sheet metal (≤ 0.6 mm)
- Bathroom installations
- Exterior applications
- Material: Carbon steel
- Finish: Exterior Plus
- Thread Diameter: 4.2 mm
- Length: 25 mm
- Thread Length: 21 mm
- Head Type: Countersunk wafer
- Recess Type: Phillips (PH2)
- Point Type: Twin‑cut
- Max Drilling Thickness: 0.6 mm
- Pack Size: 200 screws
- Weight: 400 gm
- Dimensions (Packaging): 74 x 92 x 58 mm
- Special Feature: Exterior‑grade coating, 1,500 h salt‑spray resistance
- Fire Classification: A1
- Corrosion Resistance: High (organic plating)
Always follow local regulations and product guidance.
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