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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 sizes with 16mm length options, these corrosion-resistant fasteners excel in metal-to-metal assembly, repair work, and construction projects. Each pack contains 100 pieces, offering excellent value for professionals and DIY enthusiasts. Ideal for automotive, HVAC, and general maintenance tasks where durability and precision matter.