#4-40 x 5/16" Machine Screw, Phillips Drive, Flat Head, Coarse, Full Thread, Steel, Zinc CR+3 Finish

# Fasteners ## Overview The MROSupply Fasteners #4-40 x 5/16" Machine Screw is an essential component in various assembly and fastening applications. Designed with a Phillips drive and a flat head, this screw provides a secure fit while ensuring ease of installation. Its coarse full thread design enhances grip and stability, making it ideal for use in a variety of materials. Constructed from high-quality steel and finished with a Zinc CR+3 coating, this machine screw offers both durability and corrosion resistance, making it suitable for both indoor and outdoor applications. ## Key Features • **Dimensions:** #4-40 thread size with a length of 5/16 inches, perfect for a wide range of fastening needs. • **Drive Type:** Phillips drive allows for increased torque and better control during installation. • **Head Style:** Flat head design provides a flush finish, ideal for applications where a smooth surface is required. • **Thread Type:** Coarse full thread ensures a strong grip and reliable fastening in various materials. • **Material:** Made from high-strength steel for added durability and structural integrity. • **Finish:** Zinc CR+3 finish offers excellent corrosion resistance, enhancing longevity in harsh environments. ## Applications • **General Assembly:** Ideal for use in woodworking, metalworking, and plastic applications where reliable fastening is essential. • **Automotive and Machinery:** Perfect for securing components in automotive and industrial machinery applications. • **Construction:** Suitable for both residential and commercial construction projects requiring strong and durable fasteners. • **Compatibility:** Works well with various materials including wood, metal, and plastic, making it versatile for multiple uses. ## Benefits • **Enhanced Durability:** The steel construction and Zinc CR+3 finish provide superior resistance to wear, rust, and corrosion. • **Easy Installation:** Phillips drive design allows for straightforward installation with commonly used tools, reducing labor time. • **Reliable Performance:** Coarse threading ensures a secure and stable hold, minimizing the risk of loosening over time. • **Versatile Use:** Suitable for a wide range of applications across different industries, providing flexibility for various projects. --- *Product information compiled with AI assistance for reference purposes.*