Blue-White Zinc Phillips Flat Head Self-Drilling Screws: Countersunk M3.5/M4.2/M4.8 Swallowtail Nails

These self-drilling screws are expertly designed for efficient and secure fastening in various applications. They feature a blue-white zinc finish for enhanced durability and corrosion resistance. The screws have a Phillips flat head that allows for a flush finish when installed and a self-drilling tip that eliminates the need for pre-drilling, greatly simplifying installation. Available in sizes M3.5, M4.2, and M4.8, these countersunk swallowtail nails are versatile and ideal for a range of projects. Whether you're working with metal, wood, or plastic, these screws provide reliable and lasting performance. Material Grade: Carbon Steel Standard No.: National Standard Nail Type: Screws Manufacture country: China Instructions included: No