An assortment of stainless steel button-head 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 range from #6-32 thru 3/8"-16 in coarse & fine thread sizes. Full assortments of #44022 contain sixteen (16) refills comprised of Hillman item numbers #43988, #43989, #43991 - #43993, #43996 - #43998, #44000, #44001, #44008, #44010, #44011, #44014, #44016, and #44020.