Enhance your fastening solutions with this sleek and durable Button Head Socket Cap Screw. Crafted from high-quality stainless steel, it guarantees long-lasting performance. The black passivate finish not only adds a stylish touch but also provides enhanced corrosion resistance. Designed to meet ASME B18.3 specifications, this screw ensures a perfect fit for your projects. The 4-40 thread size and .625-inch length make it versatile for various applications. With a convenient hex socket drive type, installation is a breeze. Plus, it's environmentally friendly with RoHS compliance. Upgrade your hardware collection with this essential component.