Enhance your fastening projects with this high-quality Button Head Socket Cap Screw. Crafted from durable steel with a 10.9 material grade, it guarantees strength and reliability. The Thermal Black Oxide finish not only adds a sleek look but also provides corrosion resistance for long-lasting performance. Featuring a 4-40 thread size and a .3125-inch length, it is perfect for various applications. The hex socket drive type ensures easy installation, making it a convenient choice for any project. Rest assured, it meets RoHS compliance standards, aligning with environmentally friendly practices. Upgrade your toolkit with this essential component for efficient and secure fastening solutions.