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Product Details
✓3440-PIECE MEGA ASSORTMENT: This comprehensive metric flat head screw assortment kit features 3440 pieces of M2, M3, M4, and M5 countersunk machine screws, matching hex nuts, flat washers, and lock washers. Complete with 5 dedicated hex wrenches and precision tweezers, it fulfills all your professional workshops and DIY requirements.
✓DUAL-MATERIAL & HIGH STRENGTH1: Crafted from premium 10.9 grade black alloy steel and corrosion-resistant 304 stainless steel. The alloy components feature a smooth black zinc plating for exceptional wear resistance, while the stainless steel options offer ultimate rust-proof durability in harsh envir
✓COUNTERSUNK PRECISION DESIGN: Manufactured to strict metric standards, allowing hex flat head screws to sit flush with or below the surface for a clean, professional finish. Sharp threads and precise cutting ensure smooth engagement and high anti-loosening performance.
✓VERSATILE APPLICATION SCENARIOS: Designed for engineers, mechanics, hobbyists, and electronics technicians. Ideal for precision machinery, 3D printer maintenance, household appliances, furniture assembly, automotive repairs, and electronic device projects.
✓UPGRADED ORGANIZER CASE: Housed in a heavy-duty, crystal-clear compartmentalized storage box featuring secure latches and adjustable dividers. Each compartment is clearly labeled with an inner reference guide for quick size identification and effortless reusability.