M5-0.8 Hex Head Serrated Flange Nuts, 304 Stainless Steel 18-8 Hexagon Head Flange Nuts for Home Automotive DIYer, Black Oxide Finish, Hex Drive, 50 PCS

PRECISION SPECS: Thread Size: 5mm; Thread Pitch: 0.8mm; Thread Type: Coarse Thread/ UNC Hex Drive Size: 8mm; Package: 50 PCS | DUAL-LAYER RUST PROTECTION: Forged from 18-8 (304) Stainless Steel and enhanced with a black protective layer. This combination offers superior corrosion resistance, ensuring your hardware stays rust-free and maintains its deep black aesthetic in any environment | STEALTH TECH & ROBOTICS: The industry favorite for carbon fiber drone frames, black 3D printer builds, and custom PC mods. These black serrated nuts provide a seamless, "stealth" look that blends perfectly with modern, dark-anodized high-tech gear | VIBRATION-PROOF LOCKING: Features an aggressive serrated flange base that "bites" into the workpiece. This integrated design provides a permanent, vibration-resistant hold, making it the ideal self-locking solution for moving tech parts and high-speed drones | DURABLE COATING & TOOL MATCH: Fits any standard 8mm hex wrench. Our advanced electrophoretic coating is ultra-thin and uniform, ensuring a perfect tool fit and smooth thread engagement without the chipping or flaking common with painted hardware