Enhance your assembly process with our Knurled Thumb Screw, designed for efficient fastening in industrial settings. Featuring a 1/4-20 thread and 1 1/4 inch length, this screw offers optimal grip and control. Crafted from durable black nylon, it ensures longevity and reliability in any application. The knurled head design allows for easy manual tightening, while the .54 inch head diameter and .365 inch height provide a comfortable grip. Upgrade your hardware with this high-quality, precision-engineered thumb screw.