The HAISHANG 20pcs Wood Screws M3.5x16mm Self-tapping Black Cross Round Head Carbon Steel Nails are an essential addition to your carpentry or woodworking toolkit. Constructed from high-grade carbon steel, these screws are known for their strength, durability, and precision. The M3.5x16mm size provides the perfect balance between strength and flexibility, making them suitable for a wide range of applications, from furniture construction to machinery repairs. The unique self-tapping design ensures an easy and reliable assembly, with the black cross head providing excellent visibility and accessibility. These screws are environmentally friendly, as they contain no lead, making them safe and suitable for use in all types of applications. So, whether you're looking to build a new piece of furniture or maintain an existing machine, the HAISHANG Wood Screws are an investment in your success.