Enhance the durability and strength of your assembly with this Button Head Socket Cap Screw. Crafted from high-grade Steel with a Thermal Black Oxide coating, this screw ensures reliable performance in a range of applications. Compliant with ASME B18.3 specifications, it features a 4-40 thread size and a hex socket drive type for easy installation. With a length of .375 inches, it's suitable for various projects. Rest assured of its quality and environmental responsibility with RoHS compliance. Upgrade your fastening solutions with this premium screw.