Enhance your fastening solutions with this Button Head Socket Cap Screw, crafted from high-grade 10.9 steel for exceptional strength and durability. Featuring a 4-40 thread size and a sleek Thermal Black Oxide finish, this screw is designed to withstand tough industrial environments while providing a secure hold. The hex socket drive type allows for easy installation, and with a length of .875 inches, it's perfect for a variety of applications. Rest assured, this screw is RoHS compliant, making it a sustainable choice for your projects. Upgrade your hardware arsenal with this premium Button Head Socket Cap Screw.