Enhance your fastening solutions with this Button Head Socket Cap Screw. Crafted from durable steel with a thermal black oxide finish, this screw ensures long-lasting strength and corrosion resistance. Compliant with ASME B18.3 specifications, it guarantees high quality and performance. Featuring a 4-40 thread size and a 10.9 material grade, it is suitable for a variety of applications. Its hex socket drive type allows for easy installation, while its 0.375-inch length offers versatility. Rest assured of its environmental friendliness with its RoHS compliance. Upgrade your toolkit with this essential hardware component.