Features Enhanced Corrosion Resistance: The black zinc plating provides superior protection against rust and corrosion, ensuring long-lasting durability in various environments Precision Engineering: Each steel pan head machine screw is designed for a secure fit, improving the overall stability and performance of your projects Safe and Compliant Coating: The solvent-based coating is resistant to chemicals and adheres to RoHS2 standards, offering peace of mind for safe usage Easy to Use: No build-up in the threads or recess on the heads allows for effortless installation and removal, enhancing convenience during assembly Versatile Application: Ideal for a wide range of applications, these fully threaded bolts are perfect for both professional and DIY projects Features: 1、Zinc Plated: These screws are standard zinc plated screws with a decorative black coating applied, increasing the tightness of the product. 2、Black Coat: Black coating offers a slightly increased level of protection against and is very thin so will not interfere with the threads. 3、Safe Coating : The coating is solvent based and is resistant to chemicals and is also RoHS2 compliant. 4、No Build Up: There is no build up in the threads or recess on the heads. Convenient to use. 5、Note: Please note though that due to the thin application on these screws, it is possible that the coating may scratch slightly. Specification: Item Type: Screw Material: A2-70 Stainless Steel Model: M3, M4 Operative Standard: DIN 7985 Process: Black Zinc Plated ModelPZ2 Package List: 50 x M4x10 Screw Package List 50 x M4x10 Screw