General description Self-drilling screws designed for fixing plasterboard to wall and ceiling track systems with a maximum thickness of 2.0mm. These screws feature a bugle head that minimizes the risk of damaging the board surface and a Phillips No.2 recess for a secure drive. Technical specifications Size: 3.5 x 38 mm Driver Bit Size: PH2 Finish: Zinc Material: Carbon Steel Corrosion Rating: 1 (suitable for clean, dry, and low humidity environments) Thread Diameter: 3.5 mm Thread Length: 33 mm MDT (Maximum Drilling Thickness): 2 mm Recess Type: Phillips Pack Quantity: 1000 Point Type: Self-Drilling Pack Type: Box Thread Type: Self-Tapping Other information CE Standard: BS EN 14566:2008 Included Items: 1x PH2 S2 Driver Bit