Black Phosphate Metal Screw, Pan Head, Square Drive, Self-Tapping Thread, Self-Drilling Point
Get the most practical powerful screwdriving with these metal screws. Ideal for chimney work, these TEK-tipped steel screws are coated with a black phosphate finish that provides good rust resistance. They are easily screwed in using a square-tipped screwdriver and have a cylindrical head providing high torque and optimal grip. These metal screws have a self-tapping thread that ensures efficient drilling and driving. They also feature a self-drilling tip that eliminates the need for pre-drilling.