PHI M3.5 Black Cross Flat Head Wood Screws High-Strength Carbon Steel Sheet Metal Screws Drilling Woodworking Furniture Repair

Efficient and convenient: Cross groove design, combined with an electric screwdriver for quick and effortless installation.Durable and sturdy: Self tapping thread design, no need for pre drilling, can be directly screwed into wood for a secure connection.Rust and corrosion prevention: Grey phosphorus surface treatment effectively prevents rust and extends service life.Widely applicable: Suitable for fixed connections of dry walls, wooden boards, gypsum boards and other materials.