4.2 x 25mm Drywall Construction Timber Stud Cement Board Screws, Phillips Head Countersunk Wafer Twin Cut – Exterior Silver Organic

Specifically designed for fixing cement board to timber and thin sheet metal (max. 0.6mm). Self countersinking head for a secure and flush finish. Twin-cut point with a hi-low thread. Exterior grade coating for superior corrosion resistance in damp or corrosive environments, when compared to standard fasteners.

• Organic plating withstands 1,500 hours in salt spray test
• Fixing to timber and thin sheet metal (max. 0.6mm)
• Twin-cut for rapid “pick-up” and reduce torque
• Ribs under the head for improved countersinking
• Fire Classification – A1