This 50-piece M4 security screw kit includes a variety of sizes, ideal for tamper-resistant fastening applications. Made from durable 304 stainless steel, these screws are heat-resistant, corrosion-resistant, and perfect for both high-security and high-temperature environments. The unique Torx design makes them difficult to remove with standard tools, ensuring your installations are secure. Package Includes: 10 pcs M4 x 6mm screws 10 pcs M4 x 8mm screws 10 pcs M4 x 10mm screws 10 pcs M4 x 12mm screws 10 pcs M4 x 16mm screws 1 pc T20 wrench Key Features: Material: 304 Stainless Steel for corrosion resistance and durability Heat Temperature Resistant: Built to perform in extreme conditions Anti-Theft Design: The grooved structure prevents removal with ordinary tools, offering tamper-proof security Fit Torx Size: T20 for secure fastening Easy Installation: Includes T20 wrench for fast and efficient installation Pitch: 0.7mm for a precise and secure fit Color: Silver Applications: Perfect for automotive, electronics, security applications, and home repairs Ideal for situations where theft prevention and secure fastening are required Suitable for both indoor and outdoor applications (Note: For wet environments, 304 stainless steel is recommended)