Product features: groove design, convenient and quick installation, stronger bearing capacity.Self-tapping screws with drill bits can directly drill into metal surfaces without pre-drilling,The thread is smooth, and firm, with uniform stress and no slippage or deformation. Package: Packaged in a box with clear model identification, these screws are treated and the is free of any oil stains, making them easy to use and efficient in your work. Use: widely used in thin pieces of furniture,thin pieces of plastic products,small appliances etc. Long-lasting and :The black screws for wood are made of carbon steel, ensuring that these wood screws effectively prevent and avoid breaking in harsh environments, and can be used for outdoor/indoor carpentry. Wide Application:Self Tapping Screws are widely used, suitable for fixing and connecting wood, thin metal, plastic and other materials, it is suitable for home, and industrial applications., Manufacturer: Ounfhtrttk