The Flat Head Socket Cap Screw, a durable and versatile fastener designed for a wide range of applications. With a thread size of 4-40 and a length of .625 inches, it is perfect for securely fastening components together. Made from high-quality steel and coated with zinc for added protection against corrosion, this screw ensures long-lasting performance. Its flat head design allows for a flush finish, making it ideal for use in tight spaces. Compliant with RoHS regulations, it is also environmentally friendly. Trust in the ASME B18.3 specification for guaranteed quality and reliability. Upgrade your fastening solutions with this essential hardware component.