This 50-piece M4 security screw kit is designed to provide strong, tamper-resistant fastening with a T20 drive. Made from high-quality 304 stainless steel, these screws are corrosion-resistant, heat-resistant, and built to last. The anti-theft design prevents unauthorized removal, making them ideal for secure applications. Package Includes: 10 pcs M4 x 20mm screws 10 pcs M4 x 25mm screws 10 pcs M4 x 30mm screws 10 pcs M4 x 35mm screws 10 pcs M4 x 40mm screws 1 pc T20 wrench Key Features: Material: Made from durable 304 stainless steel for enhanced strength and corrosion resistance Heat Temperature Resistant: Can withstand high temperatures without degrading Anti-Theft Design: The unique grooved structure of the pan head screw prevents disassembly using standard tools, offering added security Easy Installation: Includes a T20 wrench for convenient and efficient installation Pitch: 0.7mm for a secure and precise fit Color: Silver Applications: Ideal for high-security areas, electronics, automotive, and industrial applications Perfect for preventing theft and ensuring the security of assemblies in both indoor and outdoor environments Suitable for use in high-temperature settings