An assortment of Hillman smooth-head socket cap screws with a polished stainless steel finish. 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 5/16"-18 thread size. Full assortments of #944194 contain ten (10) refills comprised of Hillman item numbers #945210 - #945219.