The Button Head Socket Cap Screw, a versatile and durable fastening solution for a variety of applications. Made of high-grade steel with a thermal black oxide coating, this screw offers superior strength and corrosion resistance. Compliant with ASME B18.3 specifications, it features a 4-40 thread size and a 10.9 material grade, ensuring reliable performance. The hex socket drive type allows for easy installation, while the .125-inch length makes it ideal for securing components in tight spaces. With RoHS compliance, you can trust that this screw meets stringent environmental standards. Upgrade your fastening arsenal with this high-quality Button Head Socket Cap Screw.