Excellent Quality: These self-tapping screw sets are made of stainless steel, which provides strength and good corrosion resistance in many environments. WIDE APPLICATION: The precision thread can easily pass through various materials, such as plastic, wood, soft metal, etc., suitable for door handles such as shop, garage or home furniture fixing, machinery industry and other small repairs. Assortment: 500 screws in 7 different lengths to meet your different needs, all screws are sorted by size and packed in a plastic box, easy to carry and use. Suitable for long-term use. Not easy to deform: These screws have sharp threads that can cut into materials such as soft metal plates, plastic or wood. High hardness, not easy to deform. Note: These pan head screws are ideal for use in enclosed areas where the head needs to be flush or below the surface.