Enhance your fastening solutions with this Button Head Socket Cap Screw. Crafted from high-grade steel with a durable Thermal Black Oxide coating, this screw offers exceptional strength and corrosion resistance. Its ASME B18.3 standard compliance ensures reliability, while the 4-40 thread size and 0.375-inch length make it versatile for various applications. The 10.9 material grade guarantees optimal performance, and the hex socket drive type allows for easy installation. Rest assured, this screw is also RoHS compliant, meeting environmental standards. Upgrade your toolkit with this essential component for industrial and DIY projects.