Self-drilling countersunk wing tek screws are designed for fastening timber to steel without pre-drilling. The hardened tek point drills through mild steel, while the wings create clearance in the timber before breaking off on entry to the steel. An aggressive self-embedding head ensures a flush finish without the need to pre-drill or countersink, making them ideal for fast, repetitive installs. Features Self-embedding countersunk head for a flush, discrete finish Wings provide clearance in timber and reduce snapping risk Hardened tek point drills steel without pre-drilling (see drilling capacities) Applications Timber-to-steel fastening Fence pickets to steel frames High-volume applications requiring pre-drill and countersink in one step
