Drywall Construction Metal Stud Cement Board Screws - PH - Countersunk Wafer - Self-Drilling - Exterior - Silver Organic

Exterior-Grade Self-Drilling Screws for Fixing Cement Board to Light Gauge Steel Framework

These high-performance construction screws are designed specifically for fixing cement boards to light gauge metal studs in drywall and façade applications. Featuring a PH (Phillips) drive, self-drilling point, and a countersunk wafer head, they provide a secure, flush finish and excellent corrosion resistance for exterior use. The silver organic coating enhances durability in wet or exposed environments, making them ideal for cement board cladding and external sheathing systems.

Key Features & Benefits

• Self-Drilling Tip: Eliminates the need for pre-drilling, speeding up installation time on metal studs up to 1.6mm thick.
• Wafer Head: Countersunk design sits flush with the board surface, reducing surface disruption under finishes.
• Exterior-Grade Coating: Silver organic finish offers enhanced resistance to corrosion and weather exposure.
• PH Drive: Phillips recess provides a secure fit and reduces cam-out during driving.
• Ideal for Cement Board: Specifically suited for fibre cement panels, tile backer boards, and dense sheathing boards.

Product Details

• Head Type: Countersunk Wafer
• Drive Type: Phillips (PH)
• Point Type: Self-drilling tip (suitable for up to 1.6mm steel)
• Finish: Silver Organic Coating
• Application: Exterior use – suitable for exposed environments
• Compatible Materials: Fibre cement boards, tile backers, sheathing boards, metal studs

Application Instructions

1. Align Boards: Position cement board over metal stud framing.
2. Drive Screw: Using a Phillips driver, fix the screw until the head sits flush with the board surface. No pre-drilling required.
3. Spacing: Fix screws as per board manufacturer’s recommended spacing pattern (typically 200–300mm centres).

Limitations

• Not suitable for use with timber studs or substrates thicker than 1.6mm steel without pre-drilling.
• Ensure correct screw length for board and stud thickness.

Health & Safety

Always wear appropriate PPE including gloves, eye protection, and dust masks when installing cement boards. Use with compatible power tools and follow safe handling procedures.