Self-Tapping Screw applied on wooden material.
Self-Tapping designed screw applies on timber-to-timber or metal-to-timber, no need to pre-drilling the holes. Simply use a compatible drive bit to push straight through the timber or sheet metal. The screw’s sharp gimlet point pierces the substructure surface because the slot cuts its own pilot hole.
These screw's thread taps its self-made pilot hole and pull itself in.