The Binder Head Machine Screw, a versatile fastening solution for various applications. Constructed from durable stainless steel, this screw ensures long-lasting performance and corrosion resistance. Featuring a slotted drive type and a unique binder head design, it offers secure and efficient installation. With a thread size of 4-40 and a length of .5 inches, it is suitable for a wide range of projects. Compliant with RoHS standards, it is also environmentally friendly. Upgrade your fastening needs with this high-quality machine screw.