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These premium 410 stainless steel self-drilling screws deliver reliable fastening for demanding applications. The outer hexagonal head design provides superior grip and torque control, while the self-drilling tip eliminates pre-drilling requirements, saving time on installation. Available in M4.2 and M4.8 specifications with 13mm length, this 100-piece set offers corrosion resistance ideal for both professional contractors and DIY repairs. Perfect for metal-to-metal fastening, automotive work, and general maintenance projects where durability and precision matter.