Enhance fastening efficiency with our Fillister Slotted Screw, boasting a #4-40 thread size and a length of 9/16 inches. Constructed from durable and lightweight natural nylon, it offers reliable performance for various applications. The fillister head design ensures secure fastening, while the slotted drive type allows for easy installation. With a head diameter of .175 inches and a height of .098 inches, this screw is a versatile solution for your assembly needs. Upgrade your hardware collection with this high-quality fastener.