Self drilling countersunk wing screw with a ribbed head, Phillips drive, and Class 3 galvanised finish for fastening timber to steel. The winged design creates clearance through timber before breaking away when engaging steel, allowing the countersunk head to seat cleanly and deliver a flush finished appearance without pre-drilling within specified material thicknesses. Key features Self drilling point for fastening timber to steel Winged design creates clearance through timber before engaging steel Ribbed countersunk head for a flush finished appearance Phillips drive for easy installation Class 3 galvanised finish for corrosion resistance No pre-drilling required within stated material thicknesses Common uses Timber to steel connections Fence pickets to steel framing Construction and renovation projects Applications requiring a discrete countersunk finish