An assortment of chrome-plated, knurled-head, socket cap screws from Hillman. Cap screws carry a recessed internal socket drive to add strength. They are commonly used on machine parts, manufacturing equipment, and other mechanical applications. Variants included in this assortment feature a coarse 1/4"-20 thread size. Full assortments of #944242 contain thirteen (13) refills comprised of Hillman item numbers #940472 - #940484.