Enhance the grip and convenience of fastening tasks with this Knurled Thumb Screw. Featuring a durable Nylon 6.6 construction in sleek black, it offers both aesthetic appeal and reliable performance. The 5/16-18 thread ensures compatibility with a variety of fixtures, while the 1/2-inch length suits a range of applications. The knurled design on the head allows for easy tightening by hand, eliminating the need for tools. With a head diameter of .615 inches and a height of .385 inches, this screw provides ample leverage for efficient operation. Upgrade your hardware arsenal with this versatile and user-friendly thumb screw.