Enhance your fastening projects with our Button Head Socket Cap Screw, a high-quality and durable solution for securing components. Crafted from steel with a zinc finish, this screw offers both strength and corrosion resistance. Compliant with ASME B18.3 specifications and boasting a 4-40 thread size, it guarantees a precise and secure fit. The 10.9 material grade ensures reliability, while the convenient hex socket drive type allows for easy installation. With a length of .25 inches, it's perfect for a variety of applications. Rest assured, this screw is also RoHS compliant, making it an environmentally friendly choice for your projects. Trust in its performance for your industrial or DIY needs.