4.8mm x 38mm Self Drilling Screws, Wood to Metal Fasteners with Wings and Hardened Drill Tip and Countersunk Phillips Flat Head, Galvanized C2 Timber Decking DIN 7504 P Fixings (250 pcs)

• Wood-to-Steel Fastening – Engineered with a hardened self-drilling tip and wings that ream clearance through timber, allowing precise, tight attachment to steel substructures without the need for pre-drilling.
• Countersunk Ribbed Head – Features a flat, ribbed head design for flush countersinking into wood or composite materials, ensuring a clean surface finish and optimal pull-through resistance.
• High-Grip Threading – Coarse self-tapping thread provides maximum grip and superior holding power, making it ideal for structural connections between wood, PVC, or composite to metal frames.
• PH Drive with Anti-Cam-Out Design – Equipped with a PH3 Phillips recess for optimal torque transfer and reduced risk of cam-out during high-torque applications.
• Corrosion Protection (C2 Rated) – Zinc-coated surface offers reliable indoor and sheltered outdoor corrosion resistance, in compliance with C2 category .

These self-drilling screws are engineered for fastening composite materials, PVC, and wood to metal frames in both indoor and outdoor construction. They feature a countersunk PH-type head for a flush finish and efficient torque transfer. The hardened drill tip eliminates the need for pre-drilling, while the breakaway wings enlarge the hole in the upper material to prevent lifting and ensure clean thread engagement with metal. A zinc coating provides C2-rated corrosion resistance, in accordance with LST EN ISO 12944-2:2000, making them suitable for protected outdoor environments. Typical applications include: Decking – Securing composite or hardwood boards to steel joists Interior framing – Mounting battens, panels, or substructures to metal studs Pergolas/outdoor structures – Fastening wood to galvanized or steel posts Window and door framing – Fixing PVC or composite trims to steel frames Vehicle flooring – Attaching plywood or panels to steel chassis (e.g., truck beds)