Easily tighten or loosen fasteners with our Slotted Thumb Screw. Featuring a #4-40 thread size and 3/4-inch length, this screw is perfect for a variety of applications. Made of durable nylon 6.6 material in a natural color, it offers both strength and corrosion resistance. The round slotted head allows for easy adjustment using a slotted drive type. With a head diameter of .317 inches and a height of .216 inches, it provides a secure grip for efficient fastening. Upgrade your hardware with this reliable and versatile thumb screw.