Packaging includes: Packaging includes a variety of sizes of metal screws to meet your different needs. Material: Our metal screws are made of high quality stainless steel, coated with black zinc, high strength, no deformation, strong and durable. Fine workmanship: Metal screws are fine workmanship, have a larger surface area to distribute force, and provide good holding force to prevent screw slippage, ensuring a strong and reliable connection. Wide range of applications: Suitable for metal, wood, plastic and other materials, including metal roofs, HVAC and plumbing systems and steel frames. Date First Available May 13, 2024