Enhance your fastening solutions with our Button Head Socket Cap Screw, a versatile component designed for secure and efficient assembly. Crafted from high-quality Steel with a durable Thermal Black Oxide finish, it offers both strength and corrosion resistance. Compliant with ASME B18.3 standards, this screw guarantees reliability in various applications. Featuring a 4-40 thread size and a length of .4375 inches, it's ideal for precise installations. The 10.9 material grade ensures exceptional performance, while the Hex Socket drive type allows for easy and secure tightening. Trust in this RoHS compliant screw for your industrial or DIY projects, where quality and durability are paramount.