An assortment of marine-grade #316 stainless steel hex cap screw variants from The Hillman Group. Hex cap screws can be used when looking for outdoor applications or simply a stronger bolt. Variants included in this assortment feature coarse 5/16"-18 screw thread and range from 3/4" to 3" in length. Full assortments of #40264 contain seven (7) refills comprised of Hillman item numbers #40265 - #40271.