Introducing our Binder Head Machine Screw, a reliable fastening solution for your projects. This ASME B18.6.3-compliant screw features a 4-40 thread size, making it suitable for various applications. Crafted from durable steel and finished with a protective zinc coating, it offers both strength and corrosion resistance. The binder head design ensures secure fastening, while the slotted drive type allows for easy installation. With a length of .3125 inches, this screw is versatile and practical for a wide range of tasks. Rest assured of its environmental compliance with RoHS certification. Upgrade your fastening arsenal with this high-quality machine screw.